Lukjan CA50251720A Furnace Filter Box 17.5x25x20

Product Description

The LUKJAN CA50251720A is a furnace filter box designed to house and seal a media filter in a residential or light-commercial HVAC system. Filter boxes of this type serve as a dedicated enclosure that mounts to the return-air side of a furnace or air handler, providing a clean, properly sized cavity for the filter media and ensuring that all airflow passes through the filter rather than bypassing it. At 17.5 x 25 x 20 inches, this unit accommodates a standard high-capacity media filter and is installed by HVAC technicians during new equipment installation or when upgrading from a flat-rack filter configuration.

This filter box fits into the furnace and air handler fittings category and is suited for residential and light-commercial forced-air systems where a dedicated, properly sealed filter enclosure is required. It is commonly installed on the return-air plenum or directly at the air handler cabinet inlet. The AGM270172520H reference designation in the product title indicates an associated accessory or model-family designation. HVAC contractors typically install this box when transitioning a system to deeper media filtration, improving indoor air quality and system protection without restricting airflow in a properly sized duct system.

Key Features

• 17.5 x 25 x 20 inch enclosure sized for deep-media filter applications
• Designed for return-air side installation on furnaces and air handlers
• Provides a fully enclosed filter cavity to eliminate bypass airflow
• Fits the furnace fittings category for straightforward drop-in installation

Compatibility

Designed as an OEM-style replacement and new-installation filter box for residential and light-commercial forced-air furnace and air handler systems requiring a 17.5 x 25 x 20 inch filter enclosure.

Installation Notes

Installation is performed by a qualified HVAC technician. Power to the furnace or air handler must be shut off at the disconnect or breaker before beginning work. The filter box is typically fastened to the return-air plenum or equipment cabinet using sheet-metal screws, and all seams should be sealed with foil-backed tape to prevent air bypass. Follow local mechanical codes and the equipment manufacturer guidelines for clearances and duct connections.

Technical Specifications

• Dimensions: 17.5 x 25 x 20 inches
• Product Type: Furnace Filter Box
• Category: HVAC Furnace and Air Handler Fittings

Standard Information

• Brand: LUKJAN
• Manufacturer Part Number: CA50251720A