Lukjan CA50F292120 Furnace Box with Filter Slot 29x21x20

Product Description

The LUKJAN CA50F292120 is a furnace box with an integrated filter slot, designed for use in residential and light commercial HVAC installations. Measuring 29 x 21 x 20 inches, this sheet metal plenum box provides a reliable transition point between the furnace or air handler and the duct system. The built-in filter slot allows for convenient in-line air filtration without requiring a separate filter housing. HVAC technicians and sheet metal installers work with this type of component when fabricating or replacing supply or return air plenums as part of a forced-air system.

This furnace box is suited for use in forced-air heating and cooling systems where a field-fabricated or replacement plenum is needed. The 29 x 21 x 20 inch footprint accommodates common residential and light commercial furnace and air handler configurations. It is typically installed at the supply or return side of the unit during new construction, system replacement, or duct modification projects.

Key Features

• Integrated filter slot eliminates the need for a separate filter rack or housing
• 29 x 21 x 20 inch dimensions suit standard residential and light commercial furnace openings
• Sheet metal construction provides structural integrity in plenum applications
• Designed for use in furnace and air handler fitting assemblies within forced-air HVAC systems

Compatibility

Designed as an OEM-style replacement or new-installation furnace box for residential and light commercial forced-air HVAC systems requiring a 29 x 21 x 20 inch plenum with an integrated filter slot.

Installation Notes

Installation is typically performed by a licensed HVAC technician or sheet metal installer. Power down and shut off the furnace or air handler at the disconnect before beginning any plenum work. Seal all joints with approved HVAC foil tape or mastic sealant to meet local mechanical code requirements. Ensure the filter slot is oriented for accessible filter service after installation is complete.

Technical Specifications

• Dimensions: 29 x 21 x 20 inches
• Product Type: Furnace Box with Filter Slot
• Category: HVAC Furnace/Air Handler Fittings

Standard Information

• Brand: LUKJAN
• Manufacturer Part Number: CA50F292120