The water filter kit includes an inline hose filter (40 mesh screen), a 100 mesh screen, 2 hose washers and 3 filter washers. The garden hose inline filter connects to pressure washer inlet, standard garden hose and household water faucet. It is essential for 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 the pressure washer parts from being blocked or damaged by sand and debris. 3/4" male and female threads. The maximum operating pressure of the garden hose is 80 psi.