Tunze Check Valve - 5074.010 Trace Elements Do not add it loose

Do not add it loose to the aquarium and do not place it in water without filter wool or another suitable containment method

Fill each tube with aquarium or tap water according to the included instructions

Helps build bacteria plankton that many corals can absorb

macroalgae

Tunze Check Valve - 5074.010 Trace Elements Do not add it looseTunze Check Valve 5074. 010 The Tunze Check Valve 5074. 010 is a genuine non return valve for water lines in compatible aquarium applications. It helps prevent reverse flow in small tubing setups, including Tunze Osmolator and Calcium Dispenser installations where flow direction control is required. Tunze 5074. 010 Non Return Valve Genuine Tunze check valve for water. Helps prevent backflow through compatible small water lines. Useful in Osmolator and