When replacing an RV electrical cord hatch, compare the visible face, the opening in the sidewall, and the depth behind the door. They are different measurements. Valterra and RV Designer make round, rectangular and locking hatches, but similar-looking faces do not guarantee the same mounting pattern. Use this diagram and exact part-number links to narrow the choice.
Face size, wall cutout and depth
Round cord hatch
Rectangular cord hatch
Covered electrical inlet
Compare manufacturer numbers and dimensions
| Part | Visible face / housing | Opening and door notes |
|---|---|---|
| Valterra A10-2130VP | 5-inch round, 3-inch deep | Check the exact package template; the round opening is smaller than the face |
| Valterra A10-2150VP | 7⅝ × 6½ inches; 1½-inch recess | Valterra's medium-square design lists a 5⅞ × 4¾-inch cutout; verify the exact white package |
| Valterra A10-2151VP | 8½ × 8 inches; 1½-inch recess | 6.4 × 6.8-inch cutout in its catalog listing |
| RV Designer B101 | 5 × 3-inch round universal hatch | Manufacturer lists 3-inch or 3½-inch openings |
| RV Designer B105 | 5 × 3-inch black round hatch | Confirm original mounting footprint |
| RV Designer B110 | 5.2 × 2.6-inch deluxe round hatch | Replaceable snap-on lid |
| RV Designer B152 | 7.6 × 6½ inches; 2-inch depth | Locking rectangular version; match the original opening |
Do not select a replacement based on the outer face alone. For example, a Valterra 7⅝-inch face and an RV Designer 7.6-inch face have similar dimensions but are not confirmed to share a cutout, hinge or fastener pattern.
Round hatches and replaceable lids
Round versions suit circular cord-access openings, with varying recess depth and lid styles. RV Designer B101 lists compatibility with two opening sizes, while B110 uses a separate replaceable snap-on lid. Valterra A10-2130VP has its own housing profile.
Rectangular and locking cable-access doors
Valterra's medium and large square cord-hatch families have a recessed access door and cable exit provision. Their catalogued hardware differs from a simple round hatch. RV Designer B152 is another locking design, not a confirmed drop-in replacement for either Valterra model.
Before replacing the hatch
Measure the existing cutout and outer flange, note any lock or removable lid, and check that the stored cord end fits behind the door. Confirm the presence of an open back and the clearance for the cord when the door is shut. Check the gasket, fasteners and sealing method with the exact product instructions; hardware supplied with one model is not necessarily included with another.
Inspect the area behind the panel for hidden wiring or plumbing before any modification. For a detachable electrical inlet, identify the actual electrical connection separately and use qualified electrical service where required.
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