General Pump 2.3mm Detergent Injector – 5-8 GPM, 4500 PSI

Meet the General Pump 2.3mm Detergent Injector, a compact accessory designed to integrate with high-pressure washers and deliver a steady, controlled dose of detergent into the spray. With a fixed injector, it maintains a consistent chemical draw, letting you focus on the cleaning task rather than manual dosing.

Designed for demanding cleaning jobs, this injector handles flow ranges from 5 to 8 gallons per minute (GPM) and supports pressures up to 4500 PSI. The unit features standard 3/8 inch male inlet and outlet fittings for straightforward installation on many compatible machines, and it accepts detergents at temperatures up to 190 F, enabling you to choose a cleaner that suits the surface and job at hand.

What makes it practical

• Fixed chemical injector and high draw up to 20% ensure a steady supply of cleaning solution as you work.
• 5 to 8 GPM flow range matches mid-range machines and typical residential or commercial cleaners.
• Rugged 3/8 inch male inlet/outlet fittings simplify connections and reduce compatibility headaches.
• 4500 PSI maximum means it can handle demanding spray pressures for tough jobs.
• Maximum operating temperature of 190 F helps you pick detergents that work well at warm settings.

Real-world use and setup

In real-world use, expect a smoother workflow: attach the injector to your pressure washer line, connect your detergent source, and start spraying. The chemical draw keeps you from stopping to refill or remix cleaners, letting you cover larger areas like driveways, decks, or equipment more efficiently. The compact design can fit on many standard machines without obstructing access to the wand or trigger, and the fixed injector reduces the risk of accidental chemical leaks during operation.

Usage tips

• Keep the detergent container at a convenient height for steady draw.
• Test the cleaner on a small area before broader use to protect surfaces.
• Ensure compatibility with your machine’s flow (5-8 GPM) and pressures (up to 4500 PSI).
• Regularly check connections and clean the injector after use to prevent clogs.

While results will vary by surface, dirt, and cleaner choice, users commonly notice more consistent sudsing and a cleaner rinse when the injector is in use compared to manual dosing methods. This injector offers a practical, low-maintenance option for routine cleaning tasks and larger projects alike.