AV251 Dixon Forged Brass Global Angle Hose Valve - 2-1/2" Female NPT x 2-1/2" Male NST(NH)Features: Underwriters Listed and Factory Mutual approved. Red Steel Handwheel maximum operating pressure: 300 PSI at 70F (21C) Part Number Description Weight (Lbs.) AV151 1 1 2" Female NPT x 1 1 2" Male NST (NH) 3. 8100 AV251 2 1 2" Female NPT x 2 1 2" Male NST (NH) 8. 9200 AV251NYC 2 1 2" Female NPT x 2 1 2" Male NYC 9. 0000 AV251NYFD 2 1 2" Female NPT x 2 1 2" Male NYFD 9. 0000 AVF151 1 1 2" Female NPT x 1 1 2" Female NPT 3. 8200 AVF251 2 1 2"