Hikari Check Valve

Aquarium Solutions Check Valves are high impact plastic check valve molders with directional arrows for simple use. This check valve incorporates a dependable valve with the ideal cracking pressure for fresh or saltwater aquariums.
Highly dependable
Easy to use
Perfect for use with protein skimmers, air pumps and more
Perfect for use with protein skimmers, air pumps or other air-driven items that require protection from siphoning action.