Edelmann 313800 Brass Back Seating Drain Cock - 1/2" NPT Manufactured to the highest quality standards to ensure superior long-term performance Solid brass construction with steel handle Working temperature range: -65 F to +250 F; 150 PSI maximum operating pressure 1/2 inch male NPT For use with air, water, gas, and other fluids (not intended for natural gas, LPG, or lubricants)