Choosing pressure washer couplings, adaptors and swivels
Pressure washer fittings are not universally interchangeable. Before ordering, check the thread size, male or female connection, quick-release family, working pressure and the equipment fitted at both ends of the connection.
1/4″ and 3/8″ threaded adaptors
The 1/4″ Male to 1/4″ Male High-Pressure Adaptor joins compatible components with 1/4″ female connections, while the 3/8″ Male to 3/8″ Male High-Pressure Adaptor is intended for compatible 3/8″ female connections. Both are rated to 500 bar. Check the thread standard used by the equipment as well as the nominal size before ordering.
M22 and quick-release conversion
The Quick Release Conversion Kit is designed to convert a compatible pressure washer with an M22 threaded high-pressure hose to quick-release couplings. It includes quick-release couplings for the pump outlet and trigger inlet, plus M22-to-quick-release adaptors for the high-pressure hose.
The ARS220 QR Coupler uses an M22 x 1.5 female thread and is compatible with the specified ARS220/350 and AR31 adaptor family. It is rated to 220 bar and 50 LPM, so it should be matched to the correct plug and pressure-washing setup rather than treated as a generic quick-release fitting.
Mini Quick Release and adjustable swivel fittings
The Lever Lock Swivel Nozzle Holders use an M22 male inlet and Mini Quick Release outlet. Their adjustable angle makes them useful on compatible GVS Pressure Pole and water-fed pole conversion setups where nozzle direction needs to be changed without repositioning the entire pole.
For compatible KEW trigger guns, the KEW Spigot Quick Release converts a KEW spigot connection to a female Mini Quick Release outlet. This is useful when adapting a compatible KEW trigger to Mini Quick Release accessories.
MIDI quick-release couplings
The MIDI Stainless Steel Quick Release Coupling 3/8″ Female provides a 3/8″ female connection within the MIDI quick-release system. MIDI and Mini Quick Release are different connection families, so confirm which system your hose, gun or accessory uses before ordering.
GVS Pressure Pole adaptor
The GVS Pressure Pole Adaptor is designed for compatible GVS Pressure Poles and water-fed pole conversion kits. It uses 1/4″ BSP female threads at the top and base, with an M22 female to 1/4″ BSP male fitting arrangement. Use the individual product specification to confirm the connection required for your setup.
Check the complete connection path
When changing one coupling or adaptor, check the full connection path from the pressure washer to the hose, trigger gun, lance and final accessory. A fitting can have the correct nominal size but still be incompatible because the thread standard, male/female orientation or quick-release family is different.
For spray-end components, browse pressure washing nozzles and kits. For compatible triggers and lances, see pressure washing guns and lances. You can also browse high-level Pressure Poles or the wider pressure washing equipment range.
If you are unsure which coupling, thread or quick-release standard you have, contact GVS with details or photographs of the existing connection before ordering.
