Holding Tank Vent Filter - Powered by our refillable Five-Chamber Carbon Helix™ (patent pending), the Nautilus Filter™ has six or more times the air-to-carbon contact time, giving it much extended efficiency in odor removal compared to conventional holding tank vent filters.

The New Nautilus Filter™  is an excellent high performance choice to replace your Dometic DVF, Sealand, SaniGard, Voker, Yacht Z Marine, Camco and others in this common size format. Although slightly shorter and larger in diameter, if you can fit it, this is the best choice to replace conventional vent filters as it has nearly zero vent restriction unlike these other brands.  If you must have an exact fit replacement to these conventional filters please choose the Nautilus Filter™ OEM model as it is also refillable and has our reverse vent flow bypass valve and less air restriction than the common conventional filters although not as good airflow performance as this Pro model.

Nautilus Filter™ Holding Tank Vent Filter - Powered by our refillable Five-Chamber Carbon Helix™ (patent pending), the Nautilus Filter™ dramatically increases air-to-carbon contact time, delivering over 6× the odor removal performance and lifespan of conventional (throw away) holding tank vent filters.

Nautilus Filter™ has a built-in bypass valve to allow free air flow backwards into the holding tank to help prevent tank collapse during aggressive pump outs.

Nautilus Filter™ Pro included 5/8", 3/4", and 3/4" threaded (Dometic fittings) with 316 Stainless Steel Hose Clamps. Other sizes available at no charge - Please contact us to request.

Read more: https://nautilusfilter.com/pages/holding-tank-vent-filter-installation