Size: 63mm x 50mm Socket by socket Good Material: PVC fittings are resilient, with high tensile and impact strength. Easy to install: PVC is lightweight and easy to install; no special cutting tools are required. Installation is done using solvent cement. Application: Gray fittings are used for drain, waste and vent (DWV), sewer, and storm drain applications. Advice: For use where system temperatures will not exceed 140°F. Not intended for use under pressure. UV resistant PVC fittings contain additives that inhibit the impact of sunlight and other ultraviolet sources on the molecular structure of PVC. Without these additives, PVC may yellow, crack, become brittle, or break. Shock resistance PVC fittings are designed to withstand impacts and drops from significant heights without cracking or breaking, compared to standard plumbing-grade PVC fittings. 100% Compatible Structural-grade PVC pipe and fittings are dimensionally compatible with standard PVC fittings. Easy to install They are resilient and highly resistant to tension and impact. Installation requires the use of a primer and solvent cement. Tips PVC DWV fittings are intended for non-pressurized systems with temperatures not exceeding 140°F.