Universal Pressure Washer Hose Compatibility Guide

One of the most common questions pressure washer owners ask is: “Are pressure washer hoses universal?” The short answer: mostly yes — but only if the connectors match.

This guide explains hose compatibility in simple terms so you can confidently choose the right hose for your machine.

Are Pressure Washer Hoses Universal?

Hoses are not fully universal, but most can be made compatible with the correct connectors or adapters.

Two things matter:

The connector type (M22, quick-connect, 1/4", 3/8")
The PSI rating (hose must handle your washer’s pressure)

Common Hose Connector Types

M22 Threaded Connectors

Most common connector worldwide
Used on Karcher, Bosch, Nilfisk, Kärcher K2–K7, and many electric washers

Quick-Connect (QC) Fittings

Push-and-click system
Very common on spray guns and lances

1/4" & 3/8" Connectors

Used on hoses, guns, and high-pressure systems
3/8" usually found on petrol washers

How To Check If a Hose Will Fit Your Pressure Washer

Check the connector on your washer (M22 or quick-connect)
Check the connector on your gun or trigger handle
Check your washer’s PSI rating
Match the hose type or use a simple adapter

If the fittings don’t match, you can use a universal adapter kit to make any hose compatible.

Universal Pressure Washer Adapter Set for All Brands

Easily connect your pressure washer to any accessory with this versatile adapter set

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With the Universal Pressure Washer Adapter Set, you can easily connect your favorite accessories to any brand of pressure washer. It's super convenient and designed to save you time while giving you the flexibility to tackle any cleaning job around your home.

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Electric vs Petrol Washer Compatibility

Electric Washers

Usually use M22 or quick-connect
Most universal hoses will fit with the correct adapter

Petrol Washers

Often use 3/8" connectors
Higher PSI means you need a stronger hose

When You MUST Use the Right Hose

You can mix connectors, but NEVER mix the wrong PSI rating.

Low-PSI hose + High-PSI washer = dangerous burst
High-PSI hose + Low-PSI washer = safe

Recommended Universal Setup

A simple universal setup looks like this:

M22 → Quick-Connect adapter on washer
Quick-Connect hose
Quick-Connect trigger gun
1/4" quick-connect lances and nozzles

This gives you full compatibility across all accessories.

Universal Pressure Washer Hose Compatibility Guide

Will This Hose Fit My Pressure Washer? Here’s the Easy Way to Check

Are Pressure Washer Hoses Universal?