12"W X 8"H [Duct Opening] Linear Aluminum Clip-On Bar Return Air Grille [Outer Dimensions: 13.25"W x 9.25"H] Ceiling + Product Details Size –

+ Product Details Size – 14" x 18" or 18" x 14" is the size for the duct opening measurement only

This 30" X 12" end cap is constructed with 26-gauge galvanized steel

7/8" Insulated Copper Coil Line - Seamless Pipe Tube for HVAC

actual front end outer dimensions are approximately 32 5/8" width X 30 5/8" height

12"W X 8"H [Duct Opening] Linear Aluminum Clip-On Bar Return Air Grille [Outer Dimensions: 13.25"W x 9.25"H] Ceiling + Product Details Size –+ Product Details Size 12"W X 8"H is (for duct opening measurement only); actual front end outer dimensions are 13. 25" Width X 9. 25" Height. Design Designed for concealed, flush placement on your wall with a 3 8 inch space between louvers, this linear grille comes with an installation frame and clips for easy hook in assembly, ensuring a refined and seamless look. High Quality Aluminum The premium durable aluminum will never rust and it will never