12" X 4" FLOOR REGISTER WITH LOUVERED DESIGN - FIXED BLADES RETURN SUPPLY AIR GRILL - WITH DAMPER & LEVER - BROWN Copper Coil-Insulated Line Set Complies with industry standards of

Complies with industry standards of USA: ASTM D-882

much more than the required 700 psi for r410

Heavier gauge than needed

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12" X 4" FLOOR REGISTER WITH LOUVERED DESIGN - FIXED BLADES RETURN SUPPLY AIR GRILL - WITH DAMPER & LEVER - BROWN Copper Coil-Insulated Line Set Complies with industry standards of+ Product Details Size 12"w X 4"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 13. 5" X 5. 5" wider. Installation Location Floor. Design Rigid gauge built for durability and long life in mind, but still light and handy. Powder Coat Finish Smooth, shiny, scratch resistant, beautiful. Looks like it was just waxed. Quality Packaging Carefully shrink wrapped with cardboard backing to prevent damage