Is it a 1.8, 2.1 or 2.3 mm

The #100775 injector has a 2.1mm orifice.

my pressure washer is 3100psi @ 2.8 gpm. Is this chemical injector the correct/best one for my washer? Thanks in advance for your help -d

This injector may work ok but a better option would be General Pump #100774 which is for 2-3 GPM machines. Amazon item #B01JB6D0YG

I have 3200 psi /2.6gpm would this work and does the tube for trasporting the liquid come included?

I would suggest General Pump Model #100774 (Amazon Item #B01JB6D0YG) which is for 2-3 GPM machines. The suction tube is not included. Amazon item #B00O45UHUU would work great.

What size is the threading ?

Both sides are 3/8" NPT threads.

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General Pump 3-5 Gpm Chemical Injector 100775

Product ID: 142328425

Details

Brand
General Pump
Exterior Finish
Brass
Inlet Connection Type
Threaded
Item dimensions L x W x H
2.2 x 1 x 0.1
Manufacturer
General Pump
Material
Brass

🔩1/4" NPT threaded connections

⚙️3-5 GPM flow rate

🛡️Durable brass construction

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€ 43.37

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Sold byAmazon SpainDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

⚡ Elevate your pressure washing game with precision and durability!

RUGGED BRASS BUILD - Engineered for longevity and corrosion resistance in tough environments
QUICK CONNECT READY - Threaded 1/4" NPT ports ensure fast, leak-free setup
SHOP TESTED RELIABILITY - Proven durability with high customer satisfaction and minimal maintenance
SECURE SHIPPING PACKAGING - Arrives protected with caps and robust wrapping to guarantee pristine condition
PRECISION CHEMICAL INJECTION - Delivers consistent 3-5 GPM flow for flawless application

The General Pump 3-5 GPM Chemical Injector 100775 is a compact, brass-constructed injector designed for high-draw chemical applications up to 20%. Featuring 1/4" NPT threaded inlet and outlet connections, it ensures quick, secure installation and reliable performance. Highly rated by professionals, it combines durability with precision flow control, making it an essential upgrade for pressure washer setups.

Specifications

ASIN	B01JB6D23K
Best Sellers Rank	#13,226 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #117 in Pressure Washer Accessories
Brand Name	General Pump
Connector Type	Quick-Connect
Customer Reviews	4.6 4.6 out of 5 stars (289)
Exterior Finish	Brass
Included Components	Brass Chemical Injector Body Only
Inlet Connection Type	Threaded
Item Dimensions	2.2 x 1 x 0.1 inches
Item Type Name	Fixed Chemical Injector, High Draw, Chemical Draw Up To 20%
Item Weight	0.01 Ounces
Manufacturer	General Pump
Manufacturer Part Number	100775
Material Type	Brass
Model Number	100775
Number of Ports	2
Outlet Connection Type	1/4" NPT
Set Name	3-5 GPM
Size	Small
Specification Met	ASME
Thread Size	1/4
Thread Type	1/4" NPT
UPC	682491029694
Valve Type	Chemical Injector

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