Watts 757 NRS 10 Part of the 757 Series silt fence selector Specifications Air Valve No Brand Specifications Air Valve No Brand Watts Buy American Act Compliant NO Case Finish Zinc Plated Case Material Steel Dial Size 2 1 2 IN EAN 098268589191 Entry Style Back Inlet Connection Size 1 2 IN Inlet Connection Type Male Threaded Lead Free YES Manual Shutoff No Maximum Operating Temperature Fahrenheit 248 Minimum Temperature Fahrenheit 32 Part Number 0121667 Pressure Scale Does Not Apply To Product Sensing Element Yes Series LFTB Stem Shaft Material Brass Temperature Range 32 to 248 degrees F Thermostat Probe Length 2 IN Thermowell Yes Window Material Kostil Polymer Specification Sheet LFTB This check cover repair kit is used to repair or replace the first or second check on a 1 inch lead free double check valve assembly series LF719 Ball valve type test cocks and test cocks