UV Resistant PVC fittings contain a healthy additive that inhibits the impact of sunlight and other ultraviolet sources on the molecular structure PVC. Without it, the PVC would yellow, crack, become brittle and break. Impact Resistance PVC fittings can take a beating. They are designed to withstand knocks or drops from a significant height and will not crack or break compared to standard plumbing grade PVC fittings. Compatible Structural grade PVC pipe and fittings are dimensionally compatible with quality PVC fittings Easy to install They are resilient, highly tensile and impact resistant. Installation requires the use of primer and solvent cement. Tips PVC pressure fittings are intended for pressurized systems where the temperature does not exceed not 140F. Specifications: Product Name: Reducer Coupling Material: PVC Color: Grey Size: 50mm x 20mm / 1.97" x 0.79" (hub x hub) Overall size (approx.) : 58mm x 66mm / 2.28" x 2.6"(D*H) Package Content: 2pcs x Reducing Coupling Note: Because measurement is taken by hand, sizes shown may vary slightly. Color may vary slightly depending on the your screen settings.