Bouchon Roto-flow 4" Eau potable This gasket ensures the seal

This gasket ensures the seal between the base and the air chamber to ensure the air pump's proper operation

Note: Only three total risers (450 mm - 18") can be added to Ecoflo® compact biofilter models EC-2

and STB-730

Float tree with stop-start float and alarm float

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Bouchon Roto-flow 4" Eau potable This gasket ensures the sealRoto Flow enables equal distribution to your leaching fields. Available in 3" and 4" sizes. It gives you the low cost solution to your D Box flow regulating problems. The simple Roto Flow for D Box outlet pipes gives you the easiest "set & forget" flow regulator available. The Roto Flow fits both Schedule 40, SDR 35 and thin wall pipe sizes. Simply place the Roto Flow into the D Box outlet pipe, and adjust to equalize flow. Polylok part number: 3050 4