Mcdaniel Metals MCDA-ACG2025-3 Furnace Filter Base 20x25

Product Description

The MCDANIEL METALS MCDA-ACG2025-3 is a gas furnace filter base designed to house standard 20 x 25 inch filters in forced-air heating systems. It accepts both 1-inch and 2-inch thick filters, giving installers flexibility when matching filter media to system requirements. The base measures 3.75 inches tall, 21.375 inches wide, and 28.5 inches deep, and weighs 14 pounds. Licensed HVAC technicians and sheet metal contractors typically install this component during new equipment installation or when upgrading an existing filter section on a residential or light commercial gas furnace.

This filter base is suited for upflow, downflow, or horizontal gas furnace applications where a dedicated filter housing is required at the equipment. It provides a secure, code-friendly location for the air filter ahead of the heat exchanger, helping maintain airflow integrity and protecting internal furnace components from particulate buildup. The unit is sized for the common 20 x 25 inch filter footprint, one of the most widely used filter dimensions in residential HVAC installations.

Key Features

• Accepts 20 x 25 inch replacement filters in 1-inch or 2-inch thickness
• Compact profile at 3.75 inches tall keeps the installed footprint minimal
• 21.375 inch width and 28.5 inch depth suit standard residential furnace clearances
• Sturdy metal construction at 14 pounds supports the filter without flex or air bypass
• Compatible with both new installations and retrofit filter section upgrades

Compatibility

Designed as an OEM-style replacement or new-installation filter base for residential gas furnace systems requiring a 20 x 25 inch filter section.

Installation Notes

Installation should be performed by a licensed HVAC technician or qualified sheet metal contractor. Shut down the furnace and disconnect power at the disconnect switch or breaker before beginning work. Confirm duct dimensions and clearances match the filter base footprint prior to securing the unit in place. Follow local mechanical codes and manufacturer instructions for sealing and fastening the filter base to prevent air bypass around the filter media.

Technical Specifications

• Filter Size: 20 x 25 inches
• Filter Thickness: 1 inch or 2 inches
• Height: 3.75 inches
• Width: 21.375 inches
• Depth: 28.5 inches
• Weight: 14 pounds

Standard Information

• Brand: MCDANIEL METALS
• Manufacturer Part Number: MCDA-ACG2025-3