Watts 994BLT 2 1 2 X 3 Part of the 994BLT Series ZA100F 8NH The channels are made from The channels are made from fiber reinforced polymer and are paired with a heavy duty steel frame and grates that lock down securely—designed for dynamic loads and demanding environments Specifications Air Valve No Brand Watts Buy American Act Compliant NO Case Finish Does Not Apply To Product Case Material Valox Dial Size Does Not Apply To Product EAN 098268590852 Entry Style Back Inlet Connection Size 3 4 IN Inlet Connection Type Male Threaded Lead Free YES Manual Shutoff No Maximum Operating Temperature Fahrenheit 300 Minimum Temperature Fahrenheit 40 Part Number 0121729 Pressure Scale Does Not Apply To Product Sensing Element No Sensing Fluid Yes Series LFTA Temperature Range 40 to 300 degrees F Thermostat Probe Length 3 1 2 IN Thermowell Yes VR Retaining Valve No Window Material Glass Specification Sheet LFTA such as on an existing hydrant hookup or other non permanent installation It prevents the reverse backflow through the fire hydrant of fire protection substances and water of non potable quality from being pumped or siphoned into the potable water supply due to backsiphonage and or backpressure in accordance with national plumbing codes and water authority requirements