10" x 3" Decorative Wood Supply Air Vent HVAC Duct Cover Grille - Polished Finish Red Oak Wood - 2-Way Air Direction - [Outer Dimensions: 12w X 5"h] 10in diameter Tamper-Proof Security – Features a FLTR M8 308x3 Actual Filter Size 23 Drop Ceilings / Aluminum

Tamper-Proof Security – Features a robust design to prevent unauthorized access and protect your thermostat settings

Actual Filter Size – 25 3/4"w x 7 3/4" x 1"

Ideal for Walls & Ceilings: Designed for seamless installation in standard 12" X 6" duct openings

This Thermostat from Bramec will fit almost any thermostat

+ Product Details Size - 16"w X 20"h is the size for the duct opening measurement only

10" x 3" Decorative Wood Supply Air Vent HVAC Duct Cover Grille Polished Finish Red Oak Wood 2 Way Air Direction [Outer Dimensions: 12w X 5"h] 10in diameter Tamper Proof Security – Features a FLTR M8 308x3 Actual Filter Size 23 Drop Ceilings Aluminum Tamper Proof Security – Features a robust design to prevent unauthorized access and protect your thermostat settings Actual Filter Size – 25 3 4"w x 7 3 4" x 1"