Precise Size Compatibility: Designed with exacting standards, these blanking caps feature a perfect 40mm internal thread diameter to ensure a seamless fit on standard 40mm external waste pipes. The precise engineering guarantees optimal contact and sealing performance, though we always recommend confirming your pipe's specific measurements before installation to achieve the perfect watertight connection for your plumbing system. Industrial-Grade PVC Material: Manufactured from high density, commercial quality PVC polymer, these waste pipe caps demonstrate exceptional resistance to corrosion, chemical damage, and environmental stress. The sink pipe cap robust material maintains its structural integrity through extreme temperature fluctuations and physical impact, ensuring long-term reliability without cracking, warping, or degradation in demanding plumbing environments. Easy Installation: Experience simplified plumbing maintenance with our intuitive screw-on design that eliminates the need for specialized tools or professional assistance. The complete installation process involves simply positioning the complementary rubber sealing ring and hand-tightening the tap hole stopper onto your pipe until secure. This user-friendly approach creates an immediate, reliable barrier that effectively contains water flow and prevents leakage in any direction. Comprehensive Multi-Purpose Application: These versatile radiator blanking caps provide effective solutions across numerous residential, commercial, and industrial scenarios. Water pipe blanking caps perform excellently as temporary or permanent seals for kitchen sink drains, laundry waste pipes, bathroom plumbing, garden water systems, irrigation setups, and various mechanical applications where reliable pipe end protection is required. Complete Value Package: Your package includes a practical set of four heavy-duty 40mm sink blanking caps white accompanied by four precision-engineered rubber sealing rings. This comprehensive kit provides outstanding value by offering multiple sealing solutions in one purchase, making washing machine waste trap ideal for both immediate repair needs and future plumbing projects while ensuring you always have reliable components available when required., Manufacturer: Tweozek