REXVTNS 20PCS Aquarium Check Valves | Unidirectional Pump Valve for Fish Tank/Oxygen System | Stop Water Reverse Movement | Resilient Plastic Material | 4mm Tube Fitting

Produktbeschreibung

Essential Protection Device - These check valves create a one-way barrier that blocks water reverse movement when pumps stop working, protecting your equipment from costly water damage. Ideal for both above-water and underwater pump placements. Top-grade Plastic Construction - Made from high-grade plastic materials, our aquarium valves withstand constant water exposure without degradation. Their compact 5.5cm design ensures easy installation in tight spaces. Multi-Pump Compatibility - With universal 4mm/0.16inch fittings, these valves work with most standard aquarium pumps and oxygenation systems. Each package contains 20 valves for multiple setup options. Emergency Protection - Automatically activates during electricity outages to stop backward water movement that could burn out pumps or flood containers. A must-have protective measure for all aquarium enthusiasts. Simplified Care - The clear white design allows quick visual inspection for debris buildup. Easy-to-install valves reduce equipment downtime and extend pump lifespan significantly.