Easy to read and minimizes vibrations for accurate readings. Reads up to 5, 000 psi. Designed to fit most pressure washer brands and models. Features 3/8″ quick connect plug and couplers. Easily Monitor your water flow with the Valley Industries 2.5″ pressure Gauge kit. Easy to read & minimizes vibrations for accurate readings. Designed to fit most pressure washer brands & models. Readsup to 5, 000 PSI. Features 3/8″ quick connect plug & couplers.