Oventrop heating oil filters with deaerator are used in one pipe systems with return flow feed (suction systems) for effective filtering and deaerating of heating oil. Body of deaerator made of metal complete with wall bracket and isolating valve. Filter cup and case of float made of transparent plastic for easy function control. Connections for the suction pipe to the tank 3⁄8” female thread for compression fittings 6, 8, 10 or 12 mm (connection sets must be ordered separately). Connection to burner 1⁄4” female thread or 3⁄8” male thread with inner taper for hose connection.