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Thetford 94256 Heating Cooling Register Without Damper Polar White 11-7/8 x 4-1/4 Inch Floor Mount

Thetford 94256 polar white floor-mount heating and cooling register without damper, 11-7/8 x 4-1/4 inch polycarbonate OEM replacement
Thetford Heating/Cooling Register Without Damper - Polar White
 
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List Price: $10.59
: $7.99
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Part Number: 94256
Manufacturer: Thetford

Quantity in Stock :40

Availability: In Stock
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Thetford OEM Replacement Meets HUD / RVIA Specs Thetford 94256 Heating/Cooling Register -- Polar White, No Damper, Floor Mount

Keep your RV's climate system working as it should with a direct OEM-grade replacement register. The Thetford 94256 drops into existing floor openings with no modifications, resists fading and discoloration over years of use, and blends cleanly with polar white interior trim.

Direct OEM Replacement Register for RV Heating and Cooling Systems

The Thetford 94256 is a floor-mount heating and cooling register designed as a direct OEM replacement for RVs that originally shipped with this style of vent cover. If your existing register is cracked, yellowed, broken, or missing, this part restores function and appearance without cutting, trimming, or adapting.

Built from durable polycarbonate plastic, this register will not fade, discolor, rust, or peel -- a common failure mode on older ABS or painted metal registers in coach environments. The polar white finish coordinates with standard RV interior cabinetry and wall panels from most major manufacturers.

Floor Mount Design

Sits flush at floor level for ducted heating and cooling systems. Fits standard rectangular duct openings at 11-7/8 x 4-1/4 inches.

Polycarbonate Construction

Impact-resistant polycarbonate resists cracking, yellowing, and UV degradation better than standard ABS plastic registers.

No Damper Configuration

This register does not include an airflow damper. Airflow is managed at the system level, keeping the register low-profile and easy to clean.

HUD and RVIA Compliant

Meets or exceeds HUD and RVIA specifications for RV HVAC registers, making it suitable for factory warranty work and certified repairs.

Fitment and Compatibility

The Thetford 94256 is built as a direct OEM replacement for ducted RV floor registers. It is sized to fit standard 11-7/8 x 4-1/4 inch floor duct openings common in Class A, Class C, and fifth-wheel coaches with forced-air ducted heating and cooling systems. If your current register matches this footprint and uses no damper, the 94256 is a confirmed drop-in replacement.

This register is compatible with common RV ducted systems including those paired with Dometic, Suburban, and Duo-Therm roof air and furnace systems that use underfloor duct distribution. Check your existing register's outer dimensions before ordering if you are uncertain of duct opening size.

OEM Quality, Ready to Install
No drilling, cutting, or adapters needed. This register is a true direct replacement -- remove the old unit and snap or screw the 94256 into place using the existing duct opening and any existing fastener points.

Why Polycarbonate Matters in an RV

Standard residential registers are often made from stamped steel or low-grade ABS. In an RV, floor registers face foot traffic, temperature cycling, UV exposure from windows, and cleaning chemicals. Polycarbonate is tougher than ABS, more impact-resistant than painted steel, and dimensionally stable across the temperature swings typical of coach interiors. The polar white color is molded in -- not painted -- so there is no coating to chip or peel over time.

No Damper -- What That Means
A register without a damper has fixed louvers that allow airflow without any adjustable flap. Airflow control is handled upstream at the furnace, blower, or duct system. This keeps the register slim, clean-looking, and free of moving parts that can break or rattle over miles of road travel.

Warranty

The Thetford 94256 is backed by a limited lifetime manufacturer's warranty against defects in materials and workmanship. Thetford is a well-established supplier of OEM and aftermarket components to the RV industry, and their registers are stocked by dealers and service centers nationwide.

Installation Tip
Before installing, clear any debris from the duct opening and wipe down the subfloor surface around the opening. If the original register used screws, reuse the same fastener pattern. Avoid over-tightening into polycarbonate -- snug is sufficient.

Product Specifications

Part Number94256
Vendor / SKU55-5306
UPC810126234056
ManufacturerThetford
ColorPolar White
Damper IncludedNo
WarrantyLimited Lifetime (manufacturer)

Dimensions and Mounting

Overall Length11-7/8 in.
Overall Width4-1/4 in.
ShapeRectangular
Mounting LocationFloor
Mounting StyleSurface mount over duct opening

Materials and Compliance

MaterialPolycarbonate plastic
FinishMolded-in polar white (no paint)
Fade ResistanceYes -- will not fade, discolor, rust, or peel
HUD ComplianceMeets or exceeds HUD specifications
RVIA ComplianceMeets or exceeds RVIA specifications

Replacement and Application

ReplacesOEM air ventilation registers matching 11-7/8 x 4-1/4 in. floor opening
ApplicationRV ducted heating and cooling systems
Typical Compatible SystemsDometic, Suburban, Duo-Therm ducted furnace and roof air systems with underfloor distribution
Vehicle TypesClass A motorhomes, Class C motorhomes, fifth wheels, travel trailers with ducted HVAC

What Is Included

Register1 x Thetford 94256 floor register, polar white
DamperNot included
FastenersNot included -- reuse existing or use standard sheet metal screws
Important Information
  • This register does NOT include a damper. If you need a register with adjustable airflow control, this is not the correct part -- verify your application before ordering.
  • Confirm your existing duct opening measures 11-7/8 in. x 4-1/4 in. before ordering. This register is not designed to be trimmed or modified to fit smaller openings.
  • For floor-mount use only. This register is not rated for wall or ceiling installation where gravity or airflow dynamics differ from floor applications.
  • Polycarbonate is durable but can crack if a fastener is overtightened. Use snug hand-tight pressure only when securing to the floor surround.
  • Polar white color -- if your existing interior trim is off-white or almond, compare a color sample before purchasing to confirm a visual match.


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