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Proven Part Brass 3/8 Npt Pressure Washer In Line Chemical Soap Detergent Injector 3-5 Gpm

Proven Part Brass 3/8 Npt Pressure Washer In Line Chemical Soap Detergent Injector 3-5 Gpm

Regular price $17.99 USD
Regular price Sale price $17.99 USD
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Shipping calculated at checkout.


These Chemical Injectors for pressure washers work on the downstream side of the pump and are activated when using the low pressure black spray nozzle.  The fixed version of the chemical injector always delivers the same rate of chemicals estimated at 20%.  These chemical injectors are rebuildable and should be properly cleaned out by rinsing with water for up to two minutes. 

This product is ISO 9000 Certified to ensure quality and consistency during the manufacturing process. This durable brass body venturi style chemical / acid injector has a simple and proven design for adjustable flow up to a maximum of 12%.


2.1 Oriface
3-5 GPM
4250 PSI Max 
3/8" male x 3/8" male 
Machined brass bar stock body with a proven design 
Durability and unmatched quality at this price level 
200°F - 4500 PSI stainless steel orifice

Warning: Lead-Nickel-Cancer and Reproductive Harm

Shipping & Returns


We ship Monday-Friday, if you place an order over the weekend, it will not ship until Monday. We have most items set to Free Shipping which means we will ship it the most economical way.

If you need expedited shipping please contact us through email or give us a call to pay for upgraded shipping.


If you need to do a return, we accept returns on items still in new condition. Do not return a used or damage product unless instructed to do so. The item needs to be in the same condition you received it in.

If you don't match up your part numbers and buy the wrong part, you are responsible for the return shipping. We will only pay for the return shipping on items we make a mistake on, if we send you the wrong part, we will send you a label to return the item.

Returns are charged a restock fee of 20%. If you are unsure of the part you need, send us a message or call us, we are available Monday -Friday to check parts for you. Please include your model number in order to find the correct parts for your machine.

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