This check valve is made of solid material, which can withstand use. Features the plastic material, which has high durability, not easy to deform. Fine workmanship, ensures practicality. Protect your pipeline system from potential damage with the anti-backflow check valve that prevent water from flowing back. Features -Color:Dark Grey -Material:Plastic -Size:12.50X7.00X7.00cm/4.91X2.75X2.75in - Made with plastic materials, this check valve can withstand high temperatures for use. - Featuring -way valve design, the anti-backflow check valve effectively prevents water from flowing back and ensure the safe operation of your pipeline system. - With a quick-connect design, these liquid transfer check valve are easy to install, saving you time and labor costs. - This One Way Check Valve is suitable for a variety of pipeline systems, meeting the needs of different applications. - The excellent production process makes it have a good texture, will not be easily . Package list: 4 x Check Valve