Lees Check Valve Spring is an essential accessory for every air pump. Provides protection during a power or pump failure. Lees Check Valve prevents water siphoning from the aquarium which may damage carpet, furniture and air pump or drain aquarium, killing fish or other inhabitants.
Key Features:
Prevents water from back-siphoning into air pump
Avoids potential damage to air pump, carpet, furniture, and tank drainage
Provides protection during a power or pump failure