ZLYY 30PCS Aquarium Air Pump Check Valve,Black Red and Clear,The One Way Fish Tank Check Valve,Prevent Water Backflow from Affecting Air Pump

Descripción

Packing: Each piece contains 30 aquarium air pump check valves, transparent, red and black each 10 pieces. Size: pore size: 0.15in / 4 mm; size: 2.1in x 0.58in / 5.3 x 1.5 cm (L * maximum D). Quality: Made of high quality plastic, it is durable and not easy to break. Application: protect you air pump by preventing aquarium water from back siphoning during a power outage. Features: Compact and durable design, easy to disassemble, easy to install, suitable for most aquarium air pumps. Note: Product may have an error of 0.1 to 2 mm