RHA2530T Dixon Cast Brass Hydrant Adapter - Rocker Lug - Increaser / Reducer - 2-1/2" Female NST(NH) x 3" Male NPTPart Number Female Thread Male Thread Weight (Lbs.) RHA1576 1 1 2" Female NST(NH) 3 4" Male GHT 0. 5900 RHA1510 1 1 2" Female NST(NH) 1" Male NPSH 0. 5850 RHA1510F 1 1 2" Female NST(NH) 1" Male NST(NH) 0. 4500 RHA1510T 1 1 2" Female NST(NH) 1" Male NPT 0. 4300 RHA1515 1 1 2" Female NST(NH) 1 1 2" Male NPSH 0. 9000 RHA1515F 1 1 2" Female NST(NH) 1 1 2" Male NST(NH) 0. 7800 RHA1515T 1 1 2" Female NST(NH) 1 1 2" Male NPT 0. 4400 RHA1520 1 1 2" Female