Lukjan CA7420254SW Side-load Filter Frame Box 20x25

Product Description

The LUKJAN CA7420254SW is a side-load filter frame box designed for use in residential and light commercial HVAC duct systems. It accepts a standard 20 x 25 x 1 inch filter and features a hinged swing door that allows filter changes without disconnecting ductwork or reaching into a return-air plenum. The frame body measures 4 inches wide, providing a secure housing for the filter media. HVAC technicians and sheet metal installers use this type of filter box where a clean, accessible side-load configuration is needed in a supply or return air application.

This filter frame box is suited for new construction and retrofit installations in residential forced-air systems, including gas furnace and air handler setups. The side-load design is particularly useful where vertical or overhead access to a top-load box would be limited. It fits into standard duct runs and is typically installed in the return air side of the system upstream of the air handler or furnace.

Key Features

• Side-load design allows filter replacement without duct disassembly
• Swing door provides quick, tool-free access to the filter slot
• Accepts 20 x 25 x 1 inch standard filter media
• 4 inch wide frame body for stable, secure duct integration
• Universal filter frame box configuration for broad residential use

Compatibility

Designed as an OEM-style universal filter frame box for residential and light commercial forced-air HVAC systems using 20 x 25 x 1 inch filters.

Installation Notes

Installation is typically performed by a licensed HVAC technician or qualified sheet metal installer. Power down the air handler or furnace at the disconnect and thermostat before cutting into ductwork or securing the frame. The frame should be sealed at all duct connections using approved mastic or metal tape per local mechanical code requirements to prevent air bypass. Do not operate the system without a filter seated in the slot.

Technical Specifications

• Filter Size: 20 x 25 x 1 inches
• Frame Width: 4 inches
• Filter Slot: 1 inch
• Load Type: Side-load with swing door
• Category: Universal Filter Frame Box
• Application: HVAC Furnace and Air Handler Fittings

Standard Information

• Brand: LUKJAN
• Manufacturer Part Number: CA7420254SW