94226 — Polar-white keyed city-water hatch, plastic valve
White rectangular hatch with replaceable plastic check valve.
View 94226 productB&B 94225/94226 Keyed RV City-Water Hatches & Service Parts
Some RVs place the city-water connection inside a locking rectangular hatch rather than behind a small round cap. B&B Molders' 94225 and 94226 share a polar-white hinged hatch and wall opening, but the original check-valve material differs: brass for 94225 and plastic for 94226.
Match the keyed city-water hatch
| Maker model | Check valve | Wall opening | Outside frame | OEM key reference |
|---|---|---|---|---|
| 94225 | Brass | 4¾ × 4¼ in | 6½ × 6 in | 301-037-00069 (391); 301-037-00009 (751) |
| 94226 | Plastic | 4¾ × 4¼ in | 6½ × 6 in | 301-037-00070 (391); 301-037-00010 (751) |
The manufacturer specifies 1½-inch rear collar depth and 3-inch total depth for both. Check the old door's swing clearance, wall space behind the hatch, and original locking arrangement. A 391-key version and a 751-key version are separate OEM configurations; verify the key code of the specific assembly.
Find the exterior and plumbing components
1. Hinged outer hatch door
Polar-white exterior door protects the recessed city-water connection.
2. Recessed inlet
Holds the fill connection behind the hatch face.
3. Backflow check valve
B&B 94210 serves the specified white plastic-valve version.
4. Rear plumbing connection
½-inch male pipe-thread connection to compatible pressurized water plumbing.
Functional identification based on the manufacturer's parts list; not a scaled exploded view.
Factory service-part numbers
| Hatch model | Maker-listed replacement number | Component |
|---|---|---|
| 94226 | 94210 | Polar-white plastic check valve |
| 94226 | 94178 | Polar-white hinged door |
| 94225 | 94206 | Polar-white city-water dust cap |
| 94225 | 94178 | Polar-white hinged door |
Replacement doors and dust plugs are individual parts, not complete hatches. A door should be selected by the factory hatch identification and hinge geometry, not only by the outside colour.
Photos of matched components
94210 — Polar-white plastic city-water check valve
Plastic ½-inch male pipe-thread check valve.
View 94210 product94206 — Polar-white city-water dust plug
Flexible white dust plug used with a compatible inlet.
View 94206 productInstallation checks
- Measure the original wall cutout and confirm the flange covers the full opening.
- Identify brass versus plastic check-valve construction before selecting a replacement.
- Match the lock style, hinge and rear depth.
- Follow the RV manufacturer's sealing and plumbing service instructions; inspect for leaks after installation.
Manufacturer illustration
See the B&B Molders original parts catalog (PDF), printed page 6, for the manufacturer's component photographs, dimensions and replacement numbers.
For the compact round version without a keyed hatch, compare the 3-inch round city-water fill guide.
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