BUILDMART - 36" Plenum Box for [36" Linear Slot Diffuser - 1 Slot - Single Slot] Premium Insulated Plenum Box for Heating and CoolingGalvanized sheet metal Plenum Box with foam insulation, ideal for Texas Buildmart 36" lineal slot diffuser. This air distribution box attaches directly to the supply of the HVAC equipment that heats or cools the air. Connects to: 10" flexible duct in oval shape. Can be used and brazed to a 4" or 6" wood stud. If you do not have this size flex, you can use a reducer to modify the size. Professional HVAC Installer is Recommended. Ideal for Texas

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CFM: 213 ft3/min - Effective Velocity: 9

ASIN: B07N4F66QP

ASIN: B06XQ5R5SZ

CFM 657 ft3/min - Effective Velocity 9

CFM: 492 ft3/min - Effective Velocity: 9

ASIN: B091S1J3JF

ASIN: B09WTT9842

CFM 269 ft3/min - Effective Velocity 9

ASIN: B09J9VPVGZ

Mouth Dimensions: L: 23 13/16" W: 1 11/16"

14 x 12 14x12 12x14 12 x 14