Big Orange OEM Holding Tank Vent Filter

After many requests from Four Winns, Carver, Cruisers Yachts, and Sea Ray owners that have boats with factory fitted disposable filters, we now offer a new filter. This latest offering is a reusable, direct replacement for the disposable Sealand Sanigard Part # 309310001 (5/8" fittings). The Big Orange OEM Replacement filter offers the same great features as the Big Orange "Original", a refillable cartridge and a filter bypass valve.