The water filter kit includes an inline pipe filter (40 mesh screen), a 100 mesh screen, 2 pipe washers and 3 filter washers. The inline filter of the garden hose connects to the pressure washer inlet, standard garden hose and household water faucet. It is essential for the home to filter sediment or debris from the faucet into the garden hose or pressure washer. As a pressure washer water filter, it can protect the pressure washer parts, such as pressure washer pump, water broom, underbody cleaner, pressure washer hose, gun and wand. As a garden hose filter, it can protect pressure washer parts from being blocked or damaged by sand and debris. 3/4" male and female threads. Maximum garden hose operation is 80 psi.