110MM bottom drain with ventilation – For 2 in 1 suction – Aquaforte

Description du produit : Reinforced model of bottom drain fitted with a cover with EPDM rubber membrane (type 1) for the aeration of ponds, bodies of water and garden ponds. The cover has a diameter of 38 cm (pneumatic membrane Ø 34 cm). The recommended air supply is ± 20 liters per meter of water depth. Type 2 is an « autonomous » aerator composed of a weighted foot and a lid with membrane. Type 3 is only a separate lid with membrane. TIP: the separate cover (3) can be mounted on any standard main drain! The dimension of the pipe connection for fitting the cover is 50 mm and 48.2 mm (English dimension: 1½ inch). Air hose connection: 9 mm.