3/8" - 5/8" Black Insulated Copper Coil Line Set 16' Long - Flare Nut KIT- Seamless Pipe Tube for HVAC, Refrigerant - 3/8" Insulation Fixed Blades with Damper The total outer size of Compatible With Duct 7in Applications This sheet metal DDAG-A-1212

The total outer size of this grille is the listed size plus plus 2 and 5/8"

supported by sturdy connectors

this guard ensures long-lasting protection and security

+ Product Details Size – 36"w X 14"h is the size for the duct opening measurement only

+ Product Details Size & Compatibilty - The 20" to 18" round metal pipe reducer & increaser 30 gauge is compatible with duct 20" to 18"

3 8" 5 8" Black Insulated Copper Coil Line Set 16' Long Flare Nut KIT Seamless Pipe Tube for HVAC, Refrigerant 3 8" Insulation Fixed Blades with Damper The total outer size of Compatible With Duct 7in Applications This sheet metal DDAG A 1212 The total outer size of this grille is the listed size plus plus 2 and 5 8" supported by sturdy connectors