Nautilus Holding Tank Vent Filter Refill Kit

The Nautilus Filter effectively removes odors from holding tank vents.

This innovative (made in PNW/USA) product, currently pending a patent, known as Carbon Helix, the Nautilus Filter with five helical chambers, dramatically increases air-to-carbon contact time — delivering over 6× the odor removal performance and lifespan of conventional holding tank vent filters.

The Nautilus Filter employs a unique combination of Specialized Activated Carbons that are specifically designed to target gases (primarily H2S) and sewer odors generated in a holding tank.

Through thorough testing, these Specialized Activated Carbons were selected and combined. The Nautilus Filter offers the highest efficiency in odor removal and the most durable performance on the market. It comes with a custom refill funnel.

The Nautilus Filter system is extremely simple to install and is designed to be easily refilled with the Nautilus Filter Refill Kit. (see install video on this page)

Refill kit (sold separately) includes a proprietary blend of activated Carbon and a custom refill funnel. (see refill video on this page)