BUILDMART - 10x4 MUD-IN Air Vent Cover - Drywall Mud-in White Air Vent - Mud Linear Slot Diffuser - Register Grille for Ceiling and Walls - Texas BuildmartOur Standard Linear Slot Diffusers have ASHRAE 70 and ANSI S12. 51 Engineering Certifications Designed and Engineered to the Highest HVAC Industry Standards Commercial Grade Solid Aluminum with Modern Architectural Design This Model can be used in Ceilings and Walls This Model can be used as a Supply Vent Cover and Return Vent Cover CFM: 162 ft3 min Effective Velocity: 9. 8 ft s Neck: 9 13 16" x 3 7 8" Face: 11 3 4" x 5 11 16" This is a Non Filter

CFM: 812 ft3/min - Effective Velocity 9

36 x 10 36x10 10x36 10 x 36

ASIN: B08F9FCKN3

Neck: 47 1/4" x 3 1/8" - Face: 48 3/4" x 4 1/2"

ASIN: B09JB4CC5M

10 x 6 10x6 6x10 6 x 10

Mouth Dimensions: L: 59 3/8" W: 3 5/16"

CFM 389 ft3/min - Effective Velocity 9

CFM 196 ft3/min - Effective Velocity 9

Neck: 21 9/16" x 7 13/16" - Face: 23 11/16" x 9 13/16"

adding any type of weight is not recommended

Neck: 29 1/2" x 15 5/8" - Face: 31 1/2" x 17 9/16"