PVC Sch. 40 fitting are for pressure systems where temperatures will not exceed 140F. They are highly resilient, with high-tensile and high-impact strength. PVC Sch. 40 has better sound deadening qualities than PVC Sch. 40 DWV Foam Core and ABS Foam Core. Installation requires the use of primer and solvent cement. Features: Conforms to meet standards: ASTM D 1784, ASTM D 2466, NSF 14 and 61 White fittings that are used in potable water applications only Intended for pressure use PVC schedule 40 pipe and pressure fittings are used in irrigation, underground sprinkler systems, swimming pools, outdoor applications and cold water supply lines Maximum working temperature of 140F PVC is lightweight and easy to install Require no special tools for cutting and to be installed with solvent cement +/-1.61" ID and 1.9" OD