This listing includes a 20" Γ— 20" sheet metal return air filter rack plenum, handcrafted in the USA from 26-gauge galvanized steel. Designed to house a standard 20" Γ— 20" Γ— 1" air filter, this plenum features a sliding access door, a 3/4" hem flange, and a 12" collar for duct connection. Built for durability and easy maintenance, it’s ideal for HVAC professionals, installers, or DIY ventilation projects.

πŸ’¨ Ventilation Compatibility

Perfect for use with:

πŸ“¦ What’s Included

πŸ§ͺ Condition & Specs

πŸ“ Product Dimensions

πŸ› οΈ Key Features

🚚 Shipping & Packaging

⛏️ Need More HVAC Accessories?

Check out our other listings for ducting, fans, collars, and filter racks while supplies last.

❓ Questions Welcome

Need more info or want to confirm compatibility? Just ask! I respond quickly and clearly so you can feel confident before you buy.