Hi hope your having a class day our blue Check Valves are a must have
Material: Plastic
Product Color: Blue
Suitable for: Inlet/outlet pressure gauge tube 4mm / 0.2in
Function: Used as an oxygenation pump due to the pressure difference between the inside and outside when the work stops suddenly, causing the water flowing to reverse, damaging the oxygenation pump and causing the water in the cylinder to overflow to form a property loss. It is an indispensable accessory of the air pump to prevent the water in the fish tanks from flowing back into the air pump and burning the air pump to avoid danger.
Product Size:
Length: Approx. 3.5cm / 1.4in
Post as soon as purchased.