Features: Ensure optimal performance of your water system pump seals with these round rubber rings, designed as effective well pump shaft seals for hand well pumps. The washer gasket seal is against mechanical wear, making it perfect for agricultural well pump seals. Its reliable water sealing gasket prevents reverse flow, and supporting a wide range of well pump replacement parts applications. Features - Color: Black -Material:Rubber - Size: 8.60X8.60X0.20cm/3.38X3.38X0.08in - Size: 5.40X5.40X0.20cm/2.12X2.12X0.08in(innercircle diameter) -Fine sealing performance: the pipeline sealing gasket provides high efficiency sealing for well pump, preventing reverse flow and maintaining pure water quality in your agricultural well -Sturdy construction: crafted from wear resistant materials, the well pump shaft seals ensure extended use, making them ideal for frequent operation in outdoor or rural environments -Easy installation: the round seals are designed for quick mounting, allowing users to easily replace hand pump cup seal and ensure a tight fit with well accessories for repairing -Universal compatibility: these water pump seals are compatible with various well water pump models, offering versatile replacement rubber seal options for both home and small farm use -Long term reliability: with robust properties, the gasket well pump accessory ensures stable operation in tough outdoor conditions, minimizing pump maintenance and replacement frequency Package list: 3 x check valve seal