7/8" Insulated Copper Coil Line - Seamless Pipe Tube for HVAC, Refrigerant - 1/2" White Insulation - 50' Long Color_White display = 'block'

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If your hole is 14" wide by 20" tall

Powder-Coat Finish – Smooth

+ Product Description When it's time to upgrade your HVAC Vents in your house

Do not measure the overall size of the register itself

7/8" Insulated Copper Coil Line - Seamless Pipe Tube for HVAC, Refrigerant - 1/2" White Insulation - 50' Long Color_White display = 'block'7 8" Insulated Copper Coil Line Seamless Pipe Tube for HVAC, Refrigerant 1 2" White Insulation 50' Long High Quality Copper Coil Meets Beats ASTM B280 Standard for Air Conditioning and Refrigeration (Made From C12200 99. 9% Pure Copper). 1 2" White insulation will give you a good R value of 3. 3, And Meets Beats ASTM B280 Standard, And is classified as Class 1 Fire Proof B1 Plain Ends Gives you the freedom to cut and flare at your own project needs,