Adapter, Type: Transition, Nominal Size: 1/2 inch x 1/2 inch, Connection Type: PVC x MNPT, Material: DZR Lead Free Brass, Finish: Natural, Pressure Rating: 200 psi, Temperature Rating: 200 Deg F, Inner Diameter: 1.26 inch, Dimensions: 1.85 inch L, O-Ring Material: EPDM, Grab Ring Material: Stainless Steel, Applications: For Underground and Behind Walls without Access Panels, and Hydronic Heating as Well as Potable Water Distribution, Standards: IAPMO Listed, NSF/ANSI 61 and NSF/ANSI 372