3L 150PSI Pressure Relief Valve with Test Lever Series 3L is used for protection against excessive pressure on domestic storage tanks or tankless water heaters. Similar in construction to Watts Model 10L, the Model 3L has no temperature relieving element. Pressure range is 75-150psi (5.2-10.3 bar). These pressure relief valves are popularly used in conjunction with the Model 210 gas shutoff valve on gas water heaters to shut off gas to heater if water heater temperature exceeds 210 degrees F (99 degrees C). Watts 0011917 Features: Bronze body Furnished with test levers Relieves excessive pressure on storage tanks Relieves excessive pressure on tankless water heaters Model 3L is ASME approved Compatible with Model 210 gas shutoff valves Watts 0011917 Specifications: Height: 3-1/2" Length: 1-3/4" Material: Bronze Connection Size: 3/4" Weight: 0.7 lbs.