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Rectangular cabin air filter, pleated white media in black frame, 12 by 12 7/8 inches

Baldwin Filters

Baldwin Filters PA3803 Cabin Air Filter Rectangular 12 x 12 7/8 in

SKU CH-AT41-HTVS5

Rectangular cabin air filter measuring 12 by 12 7/8 inches for automotive HVAC systems

  • Rectangular cabin filter fits HVAC housing precisely
  • 12-inch width matches OEM dimensions for direct fit
  • 12 7/8-inch length covers full airflow path
  • 2 9/16-inch height seals against unfiltered air bypass
  • Baldwin Filters construction traps dust and pollen efficiently

Cabin Air Filter PA3803

The Baldwin Filters PA3803 is a rectangular cabin air filter designed for automotive HVAC systems. It replaces the original equipment filter to trap dust, pollen and other airborne particles before they enter the passenger compartment. This item is intended for vehicle owners or technicians performing routine maintenance on compatible models.

Rectangular 12 x 12 7/8 in dimensions

The critical specification is the filter's physical size: 12 inches wide by 12 7/8 inches long with a height of 2 9/16 inches. These exact measurements determine whether the element fits the housing. Verify the dimensions against the vehicle manufacturer's service information before ordering.

Element-only installation

The filter arrives as a standalone element without a surrounding frame or housing clips. Installation typically involves opening the glove-box or cowl access panel, removing the old element and sliding the new one into the tracks. The most common issue is inserting the filter upside down or backwards, which restricts airflow and reduces filtration efficiency.

Highlights

  • Rectangular cabin filter fits HVAC housing precisely
  • 12-inch width matches OEM dimensions for direct fit
  • 12 7/8-inch length covers full airflow path
  • 2 9/16-inch height seals against unfiltered air bypass
  • Baldwin Filters construction traps dust and pollen efficiently

Specifications

BrandBALDWIN FILTERS

Questions about this item

What does the 12 7/8 inch length mean for fitment in my vehicle?

The filter measures 12 7/8 inches long, 12 inches wide and 2 9/16 inches high, so it fits housings built to those exact rectangular dimensions.

How does the rectangular design affect installation compared with other shapes?

The rectangular element slides straight into the cabin-air housing without folding or bending, matching the factory filter outline.

What clearance do I need around the 2 9/16 inch height when mounting?

Allow at least 2 9/16 inches of vertical space in the housing so the filter seats fully without compressing the media.

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