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The 8 Best pressure washer injectors of 2025

Are you trying to find pressure washer injectors among various brands on the market but aren’t sure where to begin? To assist you in finding the right one, we’ve put together a list of the 7 best to help you pick the perfect one!

We investigated and evaluated a number of the top-selling pressure washer injectors on the market in order to create our list of the best. Making a decision among the many options available is never simple. There are an infinite number of models available, each with a distinct price. And as you’ll find out, the best options aren’t usually the ones you imagine! This comparison is rich and relevant because of the numerous factors that were employed. You will find products featured in this ranking not only based on their pricing but also on their features and other customers reviews. To write this review, we completed 21 hours of research and did 68 pressure washer injectors tests. You won’t need to pick products at random any more. If you’re unsure of what to look for, browse our list and consult the buying guide!

An overview of our top picks

Table of contents

The best pressure washer injectors you can buy today

No. 1
Sooprinse Chemical Injector Kit for High Pressure Washer, 4000 PSI Adjustable Soap Dispenser with a 1/4 Inch Black Soap Nozzle and Teflon Tape, 16 Ft Siphon Hose, 3/8 Inch Quick Connect
  • ❤【Premium Quality】Made of tough brass and stainless steel,resistant to corrosion and fading.
  • ❤【Instructioin Manual】The maximum pressure is 4000 PSI. Flow arrows Marks on the injector and do not install it backwards.
  • ❤【Kit Package】The chemical injector kit includes chemical injector, 16 feet tubing (siphon hose), filter and 1/4 inch quick connect black soap nozzle which connect to your gun or wand.
  • ❤【Scientific Design】The soap dispenser kit is equipped with a screw-in valve that adjusts the dilution ratio of chemicals and water to increase the efficiency of your high pressure washers.
  • ❤【Quality Assurance】Any problem,feel free to contact us.The professional team is always ready to serve you.
SaleNo. 2
No. 3
USSKYBOY Pressure Washer Chemical Soap Injector Kit for Briggs and Stratton, Homelite, Ryobi and Husky Replaces 190593GS 190635GS and 203640GS (2 Set)
  • 【Compatible】 Pressure Washer Soap Syringe Kit is compatible with pumps 190593GS, 190635GS and 203640GS. (1/8'' -27 BSP male thread)
  • 【Replacement method】 Remove the old fuel injector with a wrench. Remove any sticky or dry soap from the container. Make sure the rubber o-ring is on the injector as shown. Put the ball bearing in the injector, and then use the spring on the small end of the spring against the ball bearing. Insert the injector into the socket and use a 13mm wrench to tighten the injector. Do not overtighten or it will damage the o-rings or crack the white metal on the pump.
  • 【Function】 If parts on your high pressure washer pump are worn, rusted, or clogged with hard water deposits, you can replace it with this set. This will make your high pressure washer pump smoother to use.
  • 【Package contains】 The 190593GS chemical injector kit including 2 brass barbs, 2 check valve balls, 2 springs, 2 O-rings (2 set).
No. 4
M MINGLE Adjustable Chemical Injector Kit for Pressure Washer, Soap Injector, 3/8 Inch Quick Connector
  • Attention: Max pressure is 3200PSI. Pressure washer downstream chemical injector kit includes chemical injector, 10 feet tubing (siphon hose), filter and black soap nozzle.
  • Used to siphon detergent out of separate container. The chemical or soap runs after pump, which will not damage pump. Great for cleaning or spraying.
  • Control metering valve to adjust dilution ratio of chemical and water. Chemical-resist and poly strainer reduces injector clogging.
  • The soap injector is equipped with a universal 3/8’’ quick disconnect, which facilitates effortless and quick installation. It is designed to seamlessly connect between the pressure washer pump and the hose, enabling efficient mixing and dispensing of soap during the cleaning process.
  • Flow rate is from 2 GPM to 5 GPM. Works with most brands of gas and electric pressure washer, cold and hot water pressure washer.
No. 5
YAMATIC Adjustable Chemical Injector Kit, Downstream Injector Kit for Pressure Washer, 3/8 Inch Connectors, Soap Injector with Siphon Hose & Soap Nozzle,4500PSI
  • 【Application】The soap injector allows you to apply soaps or cleaning chemicals at low pressure through your pressure washer. This downstream injector is designed to apply chemical only when running under low pressure (250 PSI or less). Note: Please use the large orifice black soap spray nozzle to get the soap injector to work.
  • 【Water Flow Adjustable】 The soap dispenser kit features a controlling metering valve, which allows you to adjust the dilution ratio and increases your pressure washer's effectiveness. Water flow adjustable range: 2 GPM to 5 GPM.
  • 【Upgraded Construction】 Made of stainless steel and brass, more durable and long-lasting. The downstream injector ensures that chemicals do not run through the pump. Protect the performance of the pump and allow for a wider choice of chemicals.
  • 【3/8’’ Quick Connect】 Chemical injector kit equipped with standard 3/8’’ quick connector/disconnector. It fits between a 3/8" outlet pressure washer pump and a 3/8" high power washer hose.
  • 【OEM Performance】 Max 4500 PSI Working pressure, works great with most brands of pressure washers, especially gas-powered washers. Work Temperature 32°F to 122°F(0°C to 50°C ), suitable for cold and hot water applications.
No. 6
Raincovo Downstream Injector for Pressure Washer, Power Washer Chemical Injector Kit, Soap Injector, 3/8 Inch Quick Connect, 4000 PSI
  • Package: Kit Includes chemical injector, 10 feet siphon hose, filter, black nozzle soap with 1/4” quick connect and teflon tape.
  • Application: When detergent is sucked out separately, the chemical will not pass through the pump, you could use a variety of chemicals without damaging the pump.
  • Characteristic: Chemical injector kit with a metering valve, which can adjust dilution ratio of soap and water. Avoid clogging of the injector and improve the efficiency of pressure washer.
  • Connector: Downstream Injector has 3/8 inch quick connect. Fits most electric and gas power washer. It's connected between the pressure washer pump and the pressure washer hose.
  • Material: Siphon hose is made of high-quality PVC, used for hot and cold water (32°F to 122°F). Adapter is made of brass and stainless steel. Max pressure is 4000 PSI. Flow rate is 2 to 5 GPM.
SaleNo. 7
Tool Daily Compatible Chemical Injector Set for Pressure Washer, Replacement for 190593GS 190635GS 203640GS
  • Pressure Washer Soap Injector Kit, compatible Pump 190593GS, 190635GS and 203640GS. Please identify the part number of pressure washer pump, then check if it fits your pressure washer.
  • 1/8’’ -27 male BSP thread.
  • How to replace: Follow soap hose to end and you'll find injector. Take off soap hose. Use wrench to remove old injector. Clean out any gunk or dried soap in receptacle. Make sure rubber o ring is on injector as pictured. Put ball bearing inside injector and then the spring with small end of spring against the ball bearing. Insert injector into receptacle and tighten injector with 13mm wrench. Don't overtighten, you'll break the o ring or crack white metal on pump. Put the soap hose back on.
  • If the part on your pressure washer part is worn-out, rusted or hard-water-deposit clogged, you can replace it with this set.
  • Package List: Two Chemical Injector Sets, including 2 Brass Barbs, 2 Check Valve Balls, 2 Springs, 4 O-Rings.
No. 8
Raincovo Chemical Injector Kit, Soap Injector for Pressure Washer, 1/8 Inch 27 Male BSP Thread
  • Chemical injector kit fits most pump which is an OEM brand. Replaces pump 203640GS 308452002, 190593GS and 190635GS.
  • Soap injector makes cleaning so much easier and faster. It’s a great replacement for the old rusted one.
  • The brass fitting is a 1/8 inch 27 male BSP thread. Install them and the soap dispenser works just like new.
  • How to install: Take the brass fitting, drop in the little ball, insert spring with small end against the ball, then attach it back on the pump. Do not over-tighten otherwise it will snap off.
  • Kit includes 2 pieces fittings, 2 pieces small balls, 2 pieces springs, 2 pieces o-rings outside and 2 pieces inside.
No. 9
Pressure Washer Chemical Soap Injector Kit Fits for Briggs & Stratton, Homelite, Ryobi & Husky Replaces 190593GS 190635GS & 203640GS (2 Set)
  • 【Fit on】190593GS Chemical Injector Kit is the replacement soap injector kit for various models pumps, fits many other brands with FAIP Pumps and Himore Pumps, such as for Excell DeVilbiss, Troy Bilt, Husky, Campbell Hausfeld, Generac, Coleman Powermate, Ridgid, Task Force, Faip, Homelite, Brute, Duracraft, Simoniz, Simpson, John Deere, etc.
  • 【Function】If the Chemical Injector on your pressure washer is worn-out, rusted or hard-water-deposit clogged, you can replace it with this set.
  • 【Package List】190593GS chemical injector kit comes with 2 Chemical Injector Sets, including 2 Brass Barbs, 2 Check Valve Balls, 2 Springs, 4 O-Rings.
  • 【Easy Installation】How to replace: Follow soap hose to end and you'll find injector. Take off soap hose. Use wrench to remove old injector. Clean out any gunk or dried soap in receptacle. Make sure rubber o ring is on injector. Put ball bearing inside injector and then the spring with small end of spring against the ball bearing. Insert injector into receptacle and tighten injector with 13mm wrench. Don't overtighten, you'll break the o ring or crack white metal on pump.
  • 【Satisfaction Guarantee】We provide professional and sincere services to escort your shopping. If you are not 100% satisfied with our products, you only need to return them within 30 days to get a full refund. Supports a 12-month warranty.
SaleNo. 10
Ceoighe Downstream Injector for Pressure Washer, 2-5 GPM Adjustable Chemical Injector for Pressure Washer, 3/8 Inch Quick Connect, Brass Soap Injector for High Pressure Washer, 4000 PSI
  • Upgrade Construction: The downstream injector for pressure washer is applied to draw detergent from a separate container so chemicals or soap do not flow through the pump, protecting the pump's performance and allowing a wider selection of chemicals, ideal for cleaning or spraying
  • Adjustable Flow: Adjustable flow range: 2 GPM to 5 GPM; The soap injector for pressure washer features a control metering valve that adjusts the dilution ratio of chemicals and water to increase the efficiency of your pressure washer
  • Quick Connect: The adjustable chemical injector features a 3/8 inch male thread precisely matches the 3/8 inch quick connect and 3/8 inch quick plug for easy and quick installation and seamlessly connects to the pressure washer pump and hose for efficient mixing and dispensing of soap during the cleaning process
  • Quality Material: The down stream injector pressure washer is made of brass, which is more durable and resistant to chemical corrosion and can reduce injector clogging; It is suitable for most gas and electric high pressure washers, and hot and cold water high pressure washers
  • Injector Performance: The pressure washer chemical injector has a maximum working pressure of 4000 PSI and stable performance; Note: There is a flow arrow mark on the injector, please do not install it backwards
SaleNo. 11
General Pump Quick Connect Pressure Washer Detergent Injector - 2.1mm Orifice, 4500 PSI, Model Number N100812P
  • Adjustable control
  • 2.1mm orifice for pressure washers up to 5.0 GPM
  • For cold or hot water applications, up to 200deg F
  • 3/8in. inlet/outlet
SaleNo. 12
RIDGE WASHER Compatible Chemical Injector Set for Pressure Washer, Pressure Washer Replacement Accessories for 203640GS 190593GS 190635GS
914 Consomer Reviews
RIDGE WASHER Compatible Chemical Injector Set for Pressure Washer, Pressure Washer Replacement Accessories for 203640GS 190593GS 190635GS
  • Package: two chemical injector sets include two brass barbs with 1/8 inch-27 male BSP thread, two check valve balls, two springs and four o-rings
  • Compatible: Pressure washer soap injector kit is compatible with Pump 190593GS, 190635GS and 203640GS
  • Function: If the part on your pressure washer pump is worn out, rusted or hard water deposit clogged, you can replace it with this set
  • Attention: When you insert injector into receptacle of pump and tighten injector with 13 mm wrench, don't overtighten, you'll break the o ring or crack white metal on pump
  • Warm Tip: Please check the part number of your pressure washer pump and make sure the soap injector matches your pump
SaleNo. 13
REPLACEMENTKITS.COM Pressure Washer Chemical Soap Injector Kit fits Briggs & Stratton, Homelite, Ryobi & Husky Replaces 190593GS 190635GS & 203640GS
  • Pressure Washer Chemical Soap Injector Kit for Briggs & Stratton replaces 190593GS, 190635GS & 203640GS
  • Replaces 190593GS, 190635GS & 203640GS & 308452002
  • Brass Barb, 2 O-Rings and 1 Check Valve Ball
  • American owned company with the highest quality aftermarket parts.
  • 100% Satisfaction Guaranteed
No. 14
Chemical Injector Downstream Injector Brass Stainless Adjustable Downstream Injector with 9.8ft Tube 5000 PSI for Pressure Washer
  • Ideal Replacement: This chemical injector possesses both long life span and good sealing is an ideal replacement for the old and damaged parts.
  • Injector Pressure: The maximum pressure of the injector is 5000PSI, it is sure to meet most of your needs. Check the details for better using experience!
  • Brass, Stainless Steel Material: Made of premium brass and stainless steel material, the head of the injector is corrosion resistant and anti fade, which ensures a long life span.
  • Scientific Design: The chemical injector kit is equipped with a screw in valve, which can adjust the dilution ratio of chemicals and water to improve the efficiency of the high pressure washer.
  • Easy Installation: Comes with complete accessories and light weight as well, you can easily install the tube and put it in use immediately!The product is marked with a direction arrow. Do not install it in reverse.
No. 15
Ultimate Washer UW16-PW70B3 Adjustable Soap and Chemical Injector Pressure Washer, 3/8-Inch
  • Soap and Chemical Injector, 200 Degree, Pressure Washer requirements 2000-4000 PSI, 2-5 GPM
  • Works with Standard 3/8-Inch Quick Connect Pressure Washers. ONLY works with 3/8 inch inner diameter hoses and will NOT operate with 1/4 inch hose or M22 fittings
  • Pressure Washer Chemical Injector Kit Includes Injector, Tubing and Filter
  • Adjustable Control Metering Valve; Used for Cold or Hot Water Applications
  • Black soap nozzle (not included with kit) is required for proper operation. Great for Cleaning or Spraying, Compatible with Most Brands
No. 16
FANOVO Pressure Washer Soap Injector Kit,Chemical Injector Pressure Washer Replacement Accessories for Briggs & Stratton, Homelite, Ryobi & Husky Replaces 190593GS 190635GS & 203640GS (A)
  • 【WHAT YOU GET】3 Pressure Washer Chemical Soap Injector Kit including 3 check valve balls, 3 brass barbs with 1/8 inch-27 male BSP thread, 3 O-rings, and 3 springs. you can replace them with this set. This will make your high-pressure washer pump smoother to use
  • 【WHY CHOOSE PRESSURE WASHER SOAP SYRINGE KIT 】If parts on your high-pressure washer pump are worn, rusted, or clogged with hard water deposits, the Soap injector makes cleaning so much easier and faster. It’s a great replacement for the old rusted one
  • 【WIDE COMPATIBLE】The pressure washer soap injector kit is compatible with Pump 190593GS, 190635GS, and 203640GS. Chemical Injector Kit also is the replacement soap injector kit for various models of pumps manufactured by Briggs and Stratton, fits many other brands with FAIP Pumps, and Himore Pumps, Please check the part number of your pressure washer pump and make sure the soap injector matches your pump
  • 【REPLACEMENT METHOD】 Remove the old fuel injector with a wrench. Remove any sticky or dry soap from the container. Make sure the rubber o-ring is on the injector. Put the ball bearing in the injector, and then use the spring on the small end of the spring against the ball bearing
  • 【ATTENTION】When you Insert the injector into the socket use a 13mm wrench to tighten the injector. Do not overtighten or it will damage the o-rings or crack the white metal on the pump
No. 17
Adjustable Downstream Injector for Pressure Washer, Chemical Injector Kit with / 9.8ft Tube, 5000PSI Soap Injector, 1/4 Inch Interface Spray Nozzle, 3/8 Inch Quick Connector
  • Pressure Washer Accessories: Maximum pressure of injector is 5000PSI, pressure hose, softwash system is sure to meet most of your needs. Good sealing performance, ideal replacement for old and damaged parts.
  • Easy Installation: Mi t m pressure washer parts come with complete accessories, you can easily install tube and put it in use immediately! Nozzle: 1/4 inch interface spray nozzle. Head Connector: 3/8 inch quick connector.
  • Advantages: Chemical injector kit is equipped with a screw in valve, which can adjust dilution ratio of chemicals and water to improve efficiency of high pressure washer.
  • What You Get: Downstream injector for pressure washer includes chemical injector, long tubing, filter and 1/4 inch quick connect soap nozzle and teflon tape, just connect to your gun or wand.
  • Long Distance Spray: Come with / 9.8ft hose, downstream nozzle to push out water further and doesn't need to use a ladder to reach top of a two-story house. Greatly enhances cleaning efficiency.
No. 18
PWACCS Pressure Washer Siphon Hose with Filter, Downstream Soap Chemical Injector Parts for Power Washing, 10 Feet, 2 Filters
  • High Quality: Siphon hose for downstream injector is made of premium PVC material, which has a certain corrosion resistance to common liquids such as oil, farm chemicals, detergent and water; The tube also has very strong toughness and can be bent many times without being damaged.
  • Efficient Screen: Unique suction hose strainer is capable to prevent 90% impurities (>0.5 mm) from blocking your equipment and causing loss. Two filters are thoughtful equipped for you to replace.
  • Multiple Use: Pressure washer siphon hose kit is ideal for mixing and injecting fertilizer, farm chemicals, soap, plant nutrient solution with water through power washer.
  • Easy Match: The Suction hoses measures 10 feet in length, 0.28 inch inner diameter and 0.35 inch outer diameter, well matches with common pressure washer injector brand in the market. It is a good choice to be a replacement for professionals.
  • Scientific Design: The siphon hose of the pressure washer is used to suck out the solution (agrochemicals, detergents, nutrient solution, etc.) from the container and mix it with the water flowing out of the pressure washer for efficient cleaning or tillage.
No. 19
Pressure Washer Chemical Soap Injector Kit Replace 190593GS 190635GS 203640GS for 020206 020211 020212 020214, and for Troy-Bilt 020200 020207 020207 020208
  • Replace: 190593GS 190635GS 203640GS
  • Fitment: Pressure Washer 020206 020211 020212 020214 020215 020216 020218 020239 020219 020220 020222 020222 020223 020224
  • Fitment: For Troy-Bilt Pressure Washer 020200 020207 020207 020208 020213 020240 020240 020241 020242 020245 020245 020245 020292 020293 020293 020294 020295
  • Package includes: 2 * Brass Barbs; 2 * Check Valve Balls; 2 * Springs; 4 * O-rings
  • Note: Please make sure the car's model if fit your car or not before you order
No. 20
Ultimate Washer UW16-PA75B8 High Pressure Chemical Injector, 8.0 GPM, 3500 PSI, Brass
  • ADAPTOR & HIGH PRESSURE CHEMICAL KIT
  • Includes: Adjustable Injector Metering Valve, Tubing and Filter
  • Used for Cold or Hot Water Applications; Rated Up to 3500 PSI and 2-8 GPM
  • Brass Adaptor with Standard Garden Hose Fitting by 1/2-inch Male Pipe Thread
  • Connects Between Garden Hose and High Pressure Pump

How to choose a good pressure washer injectors

Does the idea of finding a fantastic pressure washer injectors make you anxious? When it comes to purchasing this product, specifically when deciding which model to select, has your head been spinning between options? You are not alone if that is the case. We are aware of the pressure involved in the purchasing process!

Your presence here indicates that you are interested in pressure washer injectors. Before choosing which product would be the best for your needs after being inundated with information, locate a reliable source with genuine selections. You can get that information from a variety of sources, including buying guides and rating websites, word-of-mouth recommendations from friends and family, online discussion forums where users can share their own experiences, product reviews that can be found all over the internet, and YouTube channels. You can only get the right product through exhaustive analysis. But you realize that’s not always simple. In order to ease your concerns, we have taken the time to develop a list of the top pressure washer injectors products available right now. You might be wondering how we came up with the list. How was this buying guide developed?

First, we used our algorithms to gather as much reliable data as we could about these products. To verify all the data gathered, we used both artificial intelligence and a lot of algorithms.
Then, our experts used criteria that are recognized in the business to evaluate them according to their quality to price ratio, allowing us to choose the top pressure washer injectors on the market right now!

The selection of the goods is not arbitrary. Before creating a list, we take into account a number of factors. Below are some of the criteria discussed:

Brand Value: What happens if you choose a dubious brand just because it appears to be a good deal? So the likelihood of receiving a product with a short shelf life increases. That is due to the fact that well-known brands have a reputation to uphold, while others do not. Top pressure washer injectors brands strive to provide some distinctive traits that set them apart from the competition. So, hopefully one or more of the items on our list will be perfect for you.

Features: Useful features are all you need, not tons of them. We consider the important aspects and select the top pressure washer injectors based on those.

Specifications: Numbers always help you measure the quality of a product in a quantitative way. We try to find products with higher specifications, but with the right balance.

Quality: A product’s quality may always be quantified with the aid of numbers. We look for goods with better standards that strike the proper balance. The best quality product that gets highly appreciated and recommended by experienced users.

Customer ratings:  Would it be accurate to suggest that the pressure washer injectors were used by hundreds of customers before you? Superior ratings indicate that many customers had better service.

Customer Reviews: Like ratings,  provide you with accurate and reliable information about the product from genuine customers. Customer ratings are very important to all of us because they contain accurate and reliable information about the customer service we received from several hundred customers.

Seller Rank: This is very intriguing! Not only do you need a good pressure washer injectors, you also need a product with rising sales that is trendy. It accomplishes two goals. First, the expanding user base proves the quality of the product. Second, given that number, producers must be able to offer greater quality and after-sales support.

Value: You get what you pay for, they say, so consider the value. Cheap isn’t always good and expensive isn’t always bad. However, that does not imply that spending a lot of money on a product that is flashy but underwhelming is a good idea. Before adding them to the list, we make an effort to evaluate how much value you can get for your money from your pressure washer injectors.

Durability: Durability and reliability are closely related concepts. You will benefit from a strong and long-lasting pressure washer injectors for months and years to come.

Product availability: Products come and go, and new ones replace the old ones. Most likely, a few new features and required changes were made. What use is it to use a supposedly good product if the maker no longer supports it? We make an effort to highlight products that are current and offered by one or more trustworthy sellers, if not more.

Negative Reviews: Yes, we do take that into account as well! The goods with the majority of bad reviews are filtered out and disregarded when we choose the best-rated one on the market.

These are the standards by which we selected our pressure washer injectors. Do we end our process there? Hell no. The most crucial fact about us that you should be aware of is that we regularly update our website with current and pertinent information. We have one more layer of filtration since we place the greatest importance on reader satisfaction. Please let us know if any product included here is incorrect, irrelevant, subpar, or simply out of date. We always value your opinions, and we’ll work hard to make any necessary corrections to our list in response to them.

Why should you believe us?

There are now thousands of possibilities for these products on Amazon, but choosing the best one can be difficult and time-consuming. And what pressure washer injectors should you purchase in 2022?

This guide is the result of more than 10 years of experience in researching, testing and writing about many topics. Each member of our team is an authority in their area. We read every article we could find online and every consumer review on every retail website for seven hours. Additionally, we discovered a ton of websites that offered helpful resources, including buying tips and thorough information on pressure washer injectors.