AHGV250 Dixon Aluminum Single Hydrant Gate Valve - 2-1/2" Female NPSH x 2-1/2" Male NPSHFeatures: High strength aluminum alloy, 356 T6. Hardcoat anodized throughout minimum thickness 0. 001". Full 2 1 2" waterway. Test pressure: 250 PSI, working pressure: 100 PSI at 70F (21C). Part Number Description Weight (Lbs.) AHGV250 2 1 2" Female NPSH x 2 1 2" Male NPSH 5. 1000 AHGV250F 2 1 2" Female NST (NH) x 2 1 2" Male NST (NH) 5. 1000 Replacement Parts HGV HDWHL Replacement Handwheel and Knob 0. 5510 HGV KNOB Replacement Knob Only 0. 5000