Enhance the performance of your water dispenser with this reliable check valve. It effectively blocks back-flow, ensuring that your water stays pure. The valve's sturdy plastic construction provides durability, while its universal compatibility makes it suitable for a wide range of water purification systems. Easy to install, it offers a handy solution to maintaining water . Features -Color:White -Material:Plastic -Size:5.00X2.30X2.30cm/1.97X0.90X0.90in -Hole diameter: 12.5 mm. -Reliable back-flow prevention: the -way check valve effectively stops water back-flow, maintaining the purity of your water dispenser and ensuring user health -Leakage-free operation: installing this accessory effectively prevents water dispenser leaks, conserving water and providing a convenient user experience -Extensive compatibility: compatible with numerous water dispenser brands and models, it is suitable for use in homes, offices, schools, and commercial settings, meeting diverse requirements -Fine material: constructed from selected materials, it offers excellent resistance to damage and wear, ensuring long-lasting durability and reliability -Effortless installation: the accessory is designed for easy installation, requiring only a few simple steps, making it convenient and time-efficient without the need for list: 2 x check valve