36"W X 4"H [Duct Opening] Linear Aluminum Clip-On Bar Return Air Grille [Outer Dimensions: 37.25"W x 5.25"H] Flexible Ducts + Product Details Size –

+ Product Details Size – The size of 4" straight saddle stick on take-off is 6"/7"/8" and it is compatible with duct 4"

actual front end outer dimensions are approximately 22 5/8" width X 12 5/8" height -

our 1/4" x 50' Soft HVAC Refrigeration Pipe/Water Supply Line stands out as the ideal choice

Pressure Rating: 2100 to 7000 PSI

+ Product Details Size - 10"w X 36"h X 2"d (for duct opening measurement only)

36"W X 4"H [Duct Opening] Linear Aluminum Clip-On Bar Return Air Grille [Outer Dimensions: 37.25"W x 5.25"H] Flexible Ducts + Product Details Size –+ Product Details Size 36"W X 4"H is (for duct opening measurement only); actual front end outer dimensions are 37. 25" Width X 5. 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