Five Acre Koi Supplies

AIRLINE NON RETURN VALVE 4mm

AIRLINE NON RETURN VALVE 4mm

 Simple 4 mm air line non return valve


Helps to prevent back siphoning of water in to your air pump


Simply slide air line over each end,the correct way round and it will allow air to pass through to the airstone,but not water back up to the airpump should it be switched off or in the event of a power cut


Great value


We advise changing them regularly to prevent failure from age over use etc

Our Price: £0.75