Interpet Aquarium Fish Tank Air Pump Line Check Valve, Prevents Damaging Back Siphoning, For all Types of

PREVENTS DAMAGE TO YOUR AIR PUMP - Keep your air pump safe and dry with this specially designed non-return valve FOR MARINE AND FRESHWATER AQUARIUMS - suitable for all aquariums, we always recommend use with any marine aquarium EASY TO INSTALL - simply install this Air Pump Check Value in your airline tubing beween the air pump and aquarium water to stop water returning down the air line, causing damage to your air pump STOPS BACK SIPHONING DURING A POWER OUTAGE - use wherever the pump is installed lower than the aquarium and always use with marine aquariums PRODUCT DIMENSIONS - total weight: 9g Measures approx. 2.08" long, 0.56" diameter; Tip outside diameter: 0.18"