Twinkle Star TWIS3834GM Pressure Washer Adapter Set, M22-14mm Quick Connect

Some pressure washer setups need one specific connection, others benefit from adapters that cover the hose, gun, pump, and water inlet. The Twinkle Star TWIS3834GM set brings together several quick-connect fittings for these different connection points.

Its brass and stainless steel construction is designed for demanding high-pressure cleaning, with a stated working pressure of up to 5,000 PSI. Quick-connect fittings make it easier to attach and disconnect compatible components.

Need to match a particular pressure washer hose? Start with the fitting size: this set’s swivel connection is M22-14mm, not M22-15mm.

Quick sizing guide

Check the hose connection before choosing an adapter. The M22 swivel in this kit has a 14mm inside diameter, so it is intended for an M22-14mm hose. Some electric pressure washers use M22-15mm fittings, which are not compatible with this connection and may lead to leaks. Matching the fitting size helps you select the right connection for your setup.

The other adapters cover common transitions: 3/8-inch quick-connect fittings, M22-14 male connections, and 3/4-inch garden-hose threads converted to quick release. That range can be useful when connecting the pressure washer pump to a hose, joining a hose to a gun, or connecting a standard garden hose to an electric washer’s pump inlet.

Pros

Rather than buying a single adapter for one connection, this set groups fittings for several parts of a pressure washer setup. The quick-connect design supports connecting and disconnecting compatible hoses and components, including when changing a wand or reconfiguring the hose connection. For a setup that uses just one fitting type, a single-purpose adapter may be sufficient, this kit is geared toward handling several of the listed connection arrangements.

The connectors are made from corrosion-resistant brass and stainless steel for use in high-pressure cleaning applications. Buyers often appreciate the straightforward hose connections and ease of use, while fit and durability feedback is mixed. Correctly matching the M22 fitting size is especially important for the swivel connection.

Tech specs

• Type: Pressure washer adapter and quick-disconnect set
• Model: TWIS3834GM
• Materials: Brass and stainless steel
• Maximum working pressure: 5,000 PSI
• M22 swivel fitting: 14mm inside diameter
• Set contents: Two M22-14mm quick-connect swivels with 3/8-inch quick-connect fittings, two 3/8-inch quick-disconnect fittings with M22-14 male connections, two 3/4-inch female fittings with 1/2-inch quick-connects, two 1/2-inch plugs with 3/4-inch male threads
• Compatibility: Designed for most gas and electric pressure washers, the M22-14mm swivel does not fit M22-15mm connections

Final verdict

The TWIS3834GM is suited to pressure washer owners who want several connection options in one set, from M22-14mm hose fittings to 3/4-inch garden-hose threads. Its quick-connect format and range of included adapters make it a practical match for setups that need connections between the pump, hose, gun, or water inlet. Choose it by matching the listed fitting sizes to your equipment, especially the 14mm M22 swivel.