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Rubber gasket with orifice. Variety of models intended for D1-5 Grease Guardian grease traps.
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Flow Restrictor D1: Rubber gasket with orifice rated 0.75 litres per second. All version D1s.
Flow Restrictor D2: Rubber gasket with orifice rated 1.25 litres per second. All version D2s.
Flow Restrictor D3: Rubber gasket with orifice rated 1.75 litres per second. All version D3s.
Flow Restrictor D4: Rubber gasket with orifice rated 2.25 litres per second. All version D4s.
Flow Restrictor D5: Rubber gasket with orifice rated 3.5 litres per second. All version D5s.