Dual Check with Atmospheric Vent, Inlet Type FNPT, Outlet Type FNPT, Inlet Size 1/4 in, Outlet Size 1/4 in, Body Height 2 3/8 in, Max. Temp. 180 Degrees F, Auto Re-Seating No, Body Material Lead-Free Brass, Body Width 1 1/4 in, Standards CSA B6437