Dometic SeaLand ECO Vent Filter Kit, Replaces 309311001, Fits 5/8 in to 1-1/2 in Vent Hose

The Dometic SeaLand ECO Vent Filter Kit is a replacement odor filter for marine holding tank vent systems. Its concave shape routes malodorous gases fully through activated odor-adsorbing media, giving more thorough odor elimination than a flat filter design. Though the shape differs from earlier filters, this ECO filter is a direct replacement for previous SeaLand and Dometic vent filters, fitting the same installation brackets as older models so you can swap it in without changing hardware.

The replacement filter cartridge inside this kit uses 55% less plastic than the previous SeaLand vent filter cartridge, and one cartridge size fits all SeaLand ECO filter housings. Components are made from recyclable plastics, making this filter more ecologically friendly than earlier SeaLand filters and many current alternatives on the market. The complete kit ships with fittings sized for the most common vent hose inner diameters used on boats: 5/8 in, 3/4 in, 1 in, and 1-1/2 in (16mm, 19mm, 25mm, and 38mm), so it fits directly into your existing vent line without needing an adapter purchased separately.

This filter is designed to install in place of the earlier part number 309311001, using the same bracket and mounting space, making it a straightforward change-over for boat owners maintaining their holding tank vent system.

Specifications

• Brand: Dometic
• Manufacturer Part Number: 309311004
• Vent Hose Fitting Sizes: 5/8 in, 3/4 in, 1 in, 1-1/2 in (16mm, 19mm, 25mm, 38mm)
• Filter Cartridge: One cartridge size fits all SeaLand ECO filter housings
• Material: Recyclable plastic components
• Weight: 1.7 pounds

Fitment

• Fits the same installation brackets and space as previous SeaLand and Dometic vent filters
• Includes fittings for 5/8 in, 3/4 in, 1 in, and 1-1/2 in (16mm, 19mm, 25mm, 38mm) vent hose

Replaces (OEM)

• 309311001

Frequently Asked Questions

What does the Dometic SeaLand ECO Vent Filter Kit (309311004) replace? This kit is a direct replacement for part number 309311001, and it installs into the same brackets and space as previous SeaLand and Dometic vent filters.

What vent hose sizes does this kit fit? The 309311004 kit includes fittings for 5/8 in, 3/4 in, 1 in, and 1-1/2 in vent hose inner diameters, which are 16mm, 19mm, 25mm, and 38mm respectively.

Will this filter fit my existing vent filter brackets without modification? Yes, even though the ECO filter has a different concave shape, Dometic designed it to fit the same installation brackets as older SeaLand and Dometic vent filters for an easy change-over.

How is odor filtered by this vent filter? The concave shape of the Dometic SeaLand ECO filter directs malodorous gases fully through an activated odor-adsorbing media, giving more complete odor elimination than earlier flat filter shapes.

Is the replacement cartridge for this filter different in size from older SeaLand cartridges? The new cartridge used in the 309311004 kit uses 55% less plastic than the previous SeaLand vent filter cartridge, and one cartridge size fits all SeaLand ECO filter housings.

What is this vent filter made of? The Dometic SeaLand ECO Vent Filter Kit is made with recyclable plastic components, which Dometic states are more ecologically friendly than the plastics used in previous SeaLand filters.

What is included in the 309311004 kit? The kit includes the ECO vent filter with its odor-adsorbing cartridge plus fittings for 5/8 in, 3/4 in, 1 in, and 1-1/2 in (16mm, 19mm, 25mm, and 38mm) vent hose IDs.

How much does this vent filter weigh? The Dometic SeaLand ECO Vent Filter Kit, part number 309311004, weighs 1.7 pounds.

Can I use this filter as a general holding tank vent odor solution, or is it specific to one boat brand? The 309311004 filter is designed for SeaLand and Dometic holding tank vent systems and fits the brackets used across previous models in that line.

Does this filter need batteries or power to work? No, the Dometic SeaLand ECO Vent Filter Kit works passively, filtering odors through its media as air passes through the vent line; it requires no power source.

Why would I choose the ECO version over an older SeaLand vent filter? The ECO version, part number 309311004, uses 55% less plastic in its cartridge, is made from recyclable materials, and provides more thorough odor filtration through its concave media shape, while still fitting the same brackets as older filters.