Holding Tank Vent Filter - Direct Generic Replacement for: Dometic, Sealand, SaniGuard, Marine Holding Tank Vent Filter (5/8" Vent Hose Applications with 3/4" GHT connectors) 309311004, Open box, never used, still sealed. Box has cosmetic damage - see photos


  • HAVE A STINKY BOAT? - Each time you flush, the foul smelling air trapped inside of your marine holding tank is exhausted outside of your boat through a vent. Eliminate these odors by replacing your old expired holding tank vent filter with a yachtZmarine replacement filter.
  • HIGHEST QUALITY CARBON - yachtZmarine holding tank vent filters utilize only the best catalytic activated carbon which was specifically developed for removing sewage odors from air streams. The carbon material of our filter has 2 to 3 times the effectiveness of other general activated carbon and chemically impregnated activated carbon filters.
  • INCLUDES REPLACEMENT FILTER ONLY - mounting brackets and fittings are not included. This yachtZmarine vent filter is a direct replacement for your current expired filter and will simply snap into place using the existing mounting brackets of your previously installed holding tank ventilation system.
  • FOR 5/8" VENT HOSE APPLICATIONS ONLY - with standard 3/4" GHT (garden hose threaded) end connectors. Not for use with 1-1/2" vent hose applications.


Shipping: One business day (or same day) after payment is received. Sales outside of the US go through the Global Shipping Program and buyers are responsible for extra fees (customs/shipping).


Payment: PayPal - payment within 2 days of purchase. Sales tax applies to Illinois residents.


Returns: No returns, please contact me if you have questions or concerns


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