C Cabinet Return Plenum – Gas Furnace (20x25x4)

This 20" x 25" x 4" return plenum is designed for use with C-cabinet gas furnace applications. Constructed from durable galvanized steel, it provides a secure connection between the return air duct system and the furnace while accommodating a standard 20x25x4 filter.

Commonly used in residential HVAC installations, this return plenum helps ensure proper airflow and filtration for efficient system performance. Ideal for new construction, equipment replacements, and retrofit applications.

Features:

• Designed for C-cabinet gas furnaces
• Accommodates 20x25x4 air filters
• Durable galvanized steel construction
• Supports proper return airflow and filtration
• Suitable for residential HVAC systems

Item# 4067475; Part# SMPDF2025