Connects to a standard garden hose, household water outlet or pressure washer. Filter Garden Stainless Steel Pressure Washer, Heavy Duty Metal Couplers ^ It has 3/4" external and internal thread. Max works for garden hose: 80 psi. ^ The water filter kit contains an inline tubular filter (40 mesh filter), a 100 mesh filter, 2 washing machines and 3 filter washing machines. ^ For the home, it is important to filter deposits or deposits from the fitting in the garden hose or pressure washer.As a pressure washer water filter, it can protect pressure washer parts such as pressure washer pump, whips , chassis cleaners, pressure washer hoses, pressure washer guns and sticks. ^ As a garden hose filter, it protects pressure washer parts and prevents them from being blocked or damaged by sand or dirt.