Flow Right 21" Galvanized Furnace Filter Box Ready-To-Assemble Filter Cabinet

Flow Right 21" Galvanized Return Air Filter Box Furnace Stand Filter Rack Filter Door

Having a clean air filter is important, sothis filter box makes it easy to replace your air filter, keep your home cleaner and your HVAC equipment work better and longer. These well constructed furnace boxes are designed to fit gas furnaces.

• Raises Low Profile Furnace off the Ground

• Easy Access to Filter for Service

Description:

• Comes in a flat, easy to store carton and assembles in just minutes
• Improves air flow up to 20% and improves equipment efficiency
• Easily adjusts from 4" to 18"
• May be used as a booster box without the filter door

Description: Galvanized;

Cabinet Dimensions: 21-3/8" x 28" x 18";

Filter Dimensions: 20" x 25" x 1" or 2";

Wt. Lbs.: 22

**MADE FOR GAS FURNACE SYSTEM**