1½"/50mm Aerated Bottom Drains for Ponds fitted with a Liner  Ref: 30a
	Fabricated Bottom Drain - Sump Details Sump Outside Diameter 160mm Sump Wall 3-4mm (approx) Sump Flange Diameter 240mm Sump Flange Thickness 6mm Liner Ring Thickness 6mm Self Tapping Screws for Flange Quantity 6 - 5.5 x 25mm Stainlless Steel Pozi Pan self Tapping Base Thickness 6mm Socket for Stem - Welded to Base 48.3mm Water outlet 1½" or 50mm Inlet for Air Hose 1" 32mm or 40mm