B&B 94305 & 94308 RV Flush-Mount Hatches: Doors and Cutouts

Two access hatches can look identical from the outside yet differ at the cutout, collar or locking arrangement. B&B Molders 94305 and 94308 are a matching pair of flush-mounted, open-back RV multi-purpose hatches. Both use the same opening and outer trim, with a choice of white or black.

Compare the two flush-mount hatches

What the original parts are

The outer door closes over the opening, while the mounting frame covers the wall cutout. An open-back, flush-mount design allows access through the wall without a deep enclosed box. Confirm there is safe clearance behind the panel for any equipment or plumbing the compartment contains.

B&B lists 94340 as the polar-white replacement door and 94341 as the black replacement door for these flush-mount versions. A door number is not a complete hatch assembly. Verify the original hinge and lock geometry before ordering a door separately.

Product photographs

94305 — Polar-white flush-mount access hatch

Open-back, flush-mount access hatch with a keyed door and no collar.

View 94305 product

94308 — Black flush-mount access hatch

Black version of the flush-mount, keyed access hatch without a collar.

View 94308 product

Keyed lock details

The factory catalog identifies separate OEM key configurations, including a 391-key version and a 751-key version. These describe lock-cylinder arrangements, not a guarantee of which key is supplied with an individual retail package. If a shared key is important, compare the actual lock code.

Before replacing a hatch

1. Measure the actual opening through the RV wall. Do not use only the exposed face dimensions.
2. Check for a flush mounting arrangement without an inward collar.
3. Match the original door colour, hinge location and key configuration.
4. Confirm the wall has suitable support for fastening and apply the RV manufacturer's exterior sealing instructions.

Manufacturer illustration

The B&B Molders official parts catalog (PDF) shows the matching hatch or water-inlet assemblies and factory replacement part numbers on printed page 42. The PDF may open in a separate viewer on mobile.

For the smaller 6½ × 7⅝-inch outside frame, see the small open-back and solid-back hatch guide.