Air Gap, For Use With Series 909 (1/4 in to 1/2 in), Size 1/4 in to 1/2 in, Connection Type NPT, Length 3 1/8 in, Width 2 3/8 in, Material of Construction Cast Iron, Max. Pressure 140 psi, Standards ANSI, ASME A 112.1. 2. This item has been restricted from sale in the following state (s): []