A combination city/gravity water-fill panel provides two separate connections: the pressurized city-water inlet and the gravity-fill spout for the RV's onboard fresh-water tank. B&B Molders makes several look-alike assemblies that differ by check-valve material and wall opening. Identifying the complete panel and its service pieces helps avoid replacing the whole hatch for a missing cap.

Which B&B water-fill panel fits your opening?

Panel City-water valve Wall opening Outside trim
94253 Brass 4¾ × 5⅞ in 6⅞ × 7⅝ in
94254 Plastic 4¾ × 5⅞ in 6⅞ × 7⅝ in
94224 Brass 3¾ × 6 in 5⁵⁄₁₆ × 7⁹⁄₁₆ in

The larger lockable 94253/94254 centers have a 1½-inch collar and approximately 3¼-inch total depth. The smaller 94224 is a different recessed design; its listed total depth is 2½ inches. The wall openings are not interchangeable.

Identify the separate water connections

Connection identification — simplified, not to scale

City-water side

Hose inlet → check valve → ½-inch male pipe-thread plumbing connection

Gravity-fill side

Fill cap → water-fill spout → 1¼- or 1⅜-inch tank fill hose

Vent line

Separate ⅜-inch tank vent connection on the specified water center

Find the correct service piece

Original component Replacement number Use
White hatch door 94182 Outer keyed-hatch door for the specified lockable centers
City-water inlet plug 94206 White rubber cap for a compatible pressurized inlet
Gravity fill cap 94243 White plastic bayonet cap and retaining lanyard
Gravity spout, strap and cap 94245 Replacement white fill-spout component set
White plastic check valve 94210 Matching plastic city-water valve used in 94254

For 94253 and 94224, the manufacturer specifies a brass city-water check valve. Do not substitute the white plastic check-valve component solely because the exterior panel is white. Match the original fitting type and connections.

Product photographs and matching links

94253 — Brass-valve city/gravity water center

B&B Molders 94253 Brass-valve city/gravity water center RV replacement part photograph

White lockable combination inlet with brass city-water check valve.

View 94253 product

94254 — Plastic-valve city/gravity water center

B&B Molders 94254 Plastic-valve city/gravity water center RV replacement part photograph

White lockable combination inlet with plastic city-water check valve.

View 94254 product

94224 — Compact city/gravity water center

B&B Molders 94224 Compact city/gravity water center RV replacement part photograph

A smaller recessed white city/gravity center with brass check valve.

View 94224 product

94182 — White combination inlet replacement door

B&B Molders 94182 White combination inlet replacement door RV replacement part photograph

Replacement outer door listed by B&B for the 94253/94254 lockable centers.

View 94182 product

94206 — White city-water inlet plug

B&B Molders 94206 White city-water inlet plug RV replacement part photograph

White rubber plug for the matching city-water inlet.

View 94206 product

94243 — White gravity-fill water cap

B&B Molders 94243 White gravity-fill water cap RV replacement part photograph

White bayonet cap with lanyard for a matching gravity-fill spout.

View 94243 product

94245 — Gravity-fill cap, strap and spout

B&B Molders 94245 Gravity-fill cap, strap and spout RV replacement part photograph

White spout assembly with retaining strap and bayonet cap.

View 94245 product

94210 — White plastic water check valve

B&B Molders 94210 White plastic water check valve RV replacement part photograph

Plastic check valve with 1/2-inch male pipe-thread connection.

View 94210 product

Before replacing or repairing a water-fill center

  1. Measure the exterior opening through the wall and the overall trim size.
  2. Identify whether the city-water side uses brass or plastic check-valve construction.
  3. Match the city-water thread, tank fill hose diameter and vent connection to the existing plumbing.
  4. If only a cap is damaged, confirm its type before ordering a complete assembly.
  5. Follow the RV manufacturer's water-system service and sealing instructions, then inspect the connections for leaks.

Manufacturer component reference

The B&B Molders official parts catalog (PDF) shows the matching hatch or water-inlet assemblies and factory replacement part numbers on printed pages 4–5. The PDF may open in a separate viewer on mobile.

For other freshwater connection shapes, compare the Valterra fill-hatch reference. These are different manufacturer part families, not interchangeability claims.

Recently viewed

New & Updated RV Parts Inventory — Check Back Often

We’re always adding new and used RV parts to our inventory, so be sure to check back regularly.

If you don’t see the part you need today, we may still have it in stock—our internal database includes thousands of new RV parts that are not yet listed online.

Text or email us with the product number or model, and we’ll check availability for you right away.

Our Products

RV Parts Newsletter

Sign up for upcoming promotions!