Dometic 309311004 DVF Holding Tank Vent Filter
Free returns on all eligible orders
You have 30 days to request a return. All sale items are final sale.
The Dometic DVF Holding Tank Vent Filter helps absorb holding tank vent odors to keep the surrounding air cleaner and more pleasant.
Key Features
- Absorbs holding tank vent odors and helps keep the surrounding air clean and pleasant
- Helps eliminate the need for holding tank chemicals
- Optimized housing is designed to block air bypass so odors are more fully filtered
- Complete kit includes the vent filter, hose fittings/adapters for vent sizes, and a mounting bracket
- Installation is made by inserting the filter into the vent hose of waste holding tanks
Product Compatibility
- Marine waste holding tank vent hoses
- RV/comfort-cabin holding tank vent systems
- Systems with vent hoses that use compatible hose/adaptor sizes (16mm to 38mm)
Product Details
- Brand/Series: Dometic DVF
- Model/Part number: 309311004
- Function: Holding tank vent filter
- Included in package (per provided description): Vent filter, Fittings (16mm to 38mm), and bracket
- Intended use (per instructions): Insert the vent filter into the vent hose of waste holding tanks to prevent escape of odors when flushing
- Service note (per instructions): Replace the vent filter at the beginning of each boating season for optimum odor control, and replace immediately if the tank overflows accidentally
Parts Desk Insights
Best Use Case: A strong choice when you want odor control at the holding tank vent without relying on holding tank chemicals.
Common Issues: Most odor-control problems come from incorrect placement in the vent hose. Follow the instructions for inserting the filter into the vent hose and ensure it’s mounted using the included holder/bracket so it’s not positioned where bypass or unfavorable flow can occur.
Related Products & Accessories
- Related products & accessories - Browse holding tank and waste management vent filtration items for additional vent hose adapters, replacement filter cartridges, and related sanitation accessories.
Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 1-3 business days.
Special-order items: timeline confirmed after order.
Returns & warranty
Returns & Satisfaction Guarantee
We stand firmly behind the quality of every product we sell. Your confidence matters to us — and we back it with a straightforward 30-Day Satisfaction Guarantee.
If you are not fully satisfied, you may request a return within 30 days of delivery. All returns must receive pre-approval prior to being sent back. Unauthorized returns will not be accepted.
To qualify for a return:
Item must be in new, unused condition
Product must be in its original packaging
All parts, components, hardware, manuals, and accessories must be included
Packaging must be undamaged and suitable for resale
Important:
Electronics are strictly inspected. No returns on open-box electronics. Exceptions may apply only with prior written approval. Any electronic unit that has been installed, powered, activated, or altered may not be eligible for return.
We are serious about product integrity — and equally serious about taking care of our customers. If there is ever a product issue, contact us immediately so we can make it right.
For return authorization, please contact our support team before shipping anything back.