The first step when creating an irrigation system is to establish what water pressure the environment has to work with. The Holman water pressure gauge offers a large easy to read interface and can be attached via a simple 3/4″ 20mm BSP female thread. Screw onto a garden tap or onto a tee anywhere in the system to take a reading. It is such an important device when setting up an irrigation system (measure both static & working water pressures). This high-quality gauge provides a precise reading every time thanks to its “fluid-filled” display. The measurements are displayed in both kPa & psi for easy conversion. Watertight seal: Use thread tape to seal 1/4″ BSP male thread to 20mm or 3/4″ BSP female threaded nut avoid leaks and drips.