Features: Efficient Backwash Preventparticlemail: Five hundred check gate features a single way plan to effectively stop wastewater backwash, ensuring neat and safe effluent for both household and industrial use. Clear Observing Windowidthelhello: Constructed of clear PVC, this gate allows easy visual inspection of stream lacking disassembly, simplifying maintenance and troubleshooting. Double Size Preferencesecond: Available in 5cm and 11cm diameters to fit various effluent demands, offering flexible agreement for residential, commercial, otherwise industrial applications. Permanent PVC Constructparticlemail: Constructed with excellent PVC substance for excellent oxidation and wear resistance, ensuring extended execution under continuous stream. Easy Installatparticlemail: Developed for bother complimentary arrange lacking professional tools otherwise abilities, facilitating quick installation to recover normal effluent function. Specifications: Product namemail: Clear liquid stop gate gate Substancemail: pvc Sizemail: 5cm diameter and 11cm property: 5cm diameter and 11cm Package Includes: Water stop check valvex1 note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you donot mind before you order. 2.Due to the differences between different monitors, the picture may not reflect the actual color about the item.