GP 100773 Fixed Injector – 1.5mm Hi-Draw Chemical Injector

Model: 100773
Category: Pressure Washer Parts & Accessories → Chemical Injectors
Type: GP Fixed Downstream Chemical Injector – 1.5 mm Hi-Draw

The GP 100773 Fixed Chemical Injector is a genuine General Pump (GP) OEM downstream detergent injector designed to introduce cleaning chemicals into pressure washer systems efficiently and reliably. This injector features a high-draw (20%) chemical pickup rate, providing strong detergent application for demanding cleaning tasks.

Key Features

• Genuine General Pump OEM chemical injector

• 20% high-draw downstream chemical injection

• 1.5 mm injector orifice for low-flow systems

• Designed for 1–2 GPM pressure washers

• 3/8" male NPT inlet and outlet connections

• 1/4" hose barb chemical pickup port

• Durable construction for professional cleaning applications

Technical Specifications

Part Number: 100773
Brand: General Pump (GP)
Injector Type: Fixed Downstream Chemical Injector
Orifice Size: 1.5 mm
Chemical Draw Rate: 20% (Hi-Draw)
Flow Range: 1 – 2 GPM
Inlet Connection: 3/8" Male NPT
Outlet Connection: 3/8" Male NPT
Chemical Port: 1/4" Hose Barb
Maximum Pressure: 4500 PSI
Maximum Temperature: 190°F
Application: Pressure washer detergent injection systems
Condition: New

Typical Applications

• Pressure washer detergent injection systems

• Residential and light commercial pressure washers

• Vehicle and equipment washing

• Exterior cleaning and degreasing applications

• Low-flow pressure washer systems requiring strong chemical draw.