Lukjan CA50F291420A Furnace Filter Box 29x14x20

Product Description

The LUKJAN CA50F291420A is a furnace box with an integrated filter slot, designed for use in residential and light commercial HVAC air distribution systems. This sheet metal furnace box connects to the supply or return side of a gas furnace or air handler, providing a dedicated housing that accepts a standard air filter. The filter slot keeps filtration in-line with the airstream without requiring a separate filter rack assembly. HVAC installers and sheet metal contractors typically source this box when building or servicing ducted forced-air systems where a built-in filter position is required at the air handler cabinet.

This furnace box measures 29 x 14 x 20 inches, making it suited for residential furnace and air handler installations where that opening size matches the equipment cabinet or duct transition. It is used in new construction and retrofit applications where the return or supply plenum requires a box with a filter slot already built in. Install crews working on forced-air gas, oil, or electric furnace systems will find this box applicable wherever the dimensional footprint aligns with the unit being serviced.

Key Features

• Integrated filter slot eliminates need for a separate filter rack in the airstream
• 29 x 14 x 20 inch body fits standard residential furnace and air handler cabinet openings of that dimension
• Sheet metal construction consistent with HVAC duct fabrication standards
• Designed for in-line installation on forced-air heating and cooling systems

Compatibility

Designed as an OEM-style sheet metal furnace box for residential and light commercial forced-air HVAC systems where a 29 x 14 x 20 inch filter box configuration is required.

Installation Notes

Installation should be performed by a licensed HVAC technician or qualified sheet metal contractor in accordance with local mechanical codes and SMACNA duct construction standards. Shut down and lock out the furnace or air handler before connecting or modifying any plenum or duct components. Seal all seams with approved mastic or foil tape to prevent air leakage and maintain system efficiency. Verify filter slot orientation and airflow direction before final fastening.

Technical Specifications

• Dimensions: 29 x 14 x 20 inches
• Product Type: Furnace Box with Filter Slot
• Category: HVAC Furnace and Air Handler Fittings

Standard Information

• Brand: LUKJAN
• Manufacturer Part Number: CA50F291420A