McKillans Pressure Washer Upgrade Kit

The kit is designed for broad compatibility and works with most major consumer brands, including Ryobi, Greenworks, Active 2.0, AR Blue, Karcher, SunJoe, Stanley, and Comet Static, as well as most gas-powered pressure washers using standard M22 threads.

Yes, the swivel inlet is one of the most practical upgrades in the kit. It allows the hose to rotate freely at the gun connection, which significantly reduces the kinking and twisting that typically happens when you move around a vehicle or patio.

The wide-mouth design is primarily about convenience and reducing waste. It makes pouring soap concentrate into the bottle much easier without spilling, and the pre-installed orifice is specifically tuned to produce the thick, clinging suds enthusiasts look for.

You generally won't need specialized tools, but a simple wrench is recommended to ensure the M22 connections are tightened securely to prevent leaks. Once the initial fittings are installed, the 1/4-inch quick-connect system allows you to swap nozzles and wands by hand without any tools.

While not strictly necessary for the sides of a car, the curved wand is a game-changer for reaching the roof, undercarriage, or wheel wells. It allows you to clean those awkward angles without having to contort your body or over-extend the hose.