Description
Fire Hydrant Backflow Preventer With Relief Valve Female Size_GHT Turn handle clockwise and expand Male Size_1 Inch 35R11 Model:3139 (6.0 TPI x 3.1875 OD) Type D brass 1 Turn handle clockwise and expand the unit head until water stops flowing This lightweight design is constructed from quality aluminum and features a swivel adapter to flush water in the direction desired