Description
Genuine Dometic/SeaLand Corrugated Water Supply Hose for 311, 4410, and 4700 VacuFlush Series Toilets
Restore reliable water delivery to your Dometic/SeaLand toilet bowl with this genuine OEM corrugated bowl supply hose. A cracked, brittle, or collapsed supply hose is a common cause of weak water flow into the bowl, leaks at the connection points, or a flush that doesn't properly rinse the bowl. This corrugated hose design allows for flexible routing around tight installation spaces while resisting kinking, making it the correct replacement across several older Dometic toilet platforms.
Compatible With:
- Dometic 311 Series gravity-flush toilets
- Dometic 4410 / 4410S (2009 and earlier)
- Dometic 4700-Series VacuFlush toilets (pre-2019)
Key Features:
- Genuine Dometic/SeaLand OEM replacement part
- Corrugated design resists kinking during installation and routing
- Direct fit for older 311, 4410/4410S, and pre-2019 4700-series VacuFlush toilets
- Restores proper water flow to the bowl during flush cycles
How to Confirm This Is the Right Hose for You
This hose is specific to the 311 series, 4410/4410S models manufactured 2009 and earlier, and 4700-series VacuFlush toilets manufactured before 2019. If your 4410/4410S or 4700-series toilet was manufactured after these cutoff dates, a newer, differently-designed supply hose may apply instead. Check your toilet's manufacture date (often listed on the data plate) before ordering, or contact us for help confirming fitment.
Frequently Asked Questions
Why does the model year matter for this part?
Dometic has updated the water supply hose design over time — this corrugated version is specific to 4410/4410S units from 2009 and earlier, and 4700-series VacuFlush units built before 2019. Newer production years may use a different hose design, so confirming your toilet's manufacture date helps ensure correct fitment.
My bowl isn't getting enough water during flush — is this the right fix?
A cracked, collapsed, or brittle supply hose is a common cause of weak water delivery to the bowl. If your hose shows visible cracking, kinking, or wear, replacing it with this genuine part is a direct, affordable fix.
Will this fit my newer 4700-series VacuFlush toilet?
This hose is specified for pre-2019 production. If your toilet was manufactured in 2019 or later, check with us to confirm whether a different, updated hose part applies to your unit.
Is this the same as the water valve?
No — this is the flexible hose that carries water from the valve to the bowl. If your toilet isn't adding water at all (rather than experiencing weak flow through an existing hose), you may need the water valve module instead.
Why is this a special order item?
Some Dometic/SeaLand replacement components, including this hose, are stocked directly by the manufacturer rather than held in regular retail inventory, so we order it specifically for your purchase.
You May Also Need
- Dometic Water Valve Module (311/300/301 compatible)
- Dometic Vacuum Breaker Kit (4410 series)
- Dometic 1/2" Sealing Grommet Kit (part #385311164)
Special Order Item
Please note: This is a special order item.
- Lead times may vary based on Dometic manufacturing and availability — contact us for current estimated timing
- Special order items are non-cancelable and non-returnable once the order has been placed with the manufacturer, except in the case of a warranty issue or shipping damage
- Orders containing both in-stock and special-order items may ship separately or be held until all items are available
