18" X 12" Steel Return Air Filter Grille for 1" Filter - Removable Frame - [Outer Dimensions: 20 5/8" X 14 5/8"] Copper Coil-Insulated Line Set display === 'none') { dd 18" Round Duct Pipe Fixed 45 horizontal blades LO1810

display === 'none') { dd

Operating temperature from -40°f to +248°f [-40°c to +120°c]

Adjustable airflow control - by rotating the middle disk

High Quality – Polished pre-finish gloss varnish ready to install - can also be sanded and re-finished according to application needs

+ Product Details Size – 10" X 2" is the size for the duct opening (floor/vent hole) measurement only

18" X 12" Steel Return Air Filter Grille for 1" Filter Removable Frame [Outer Dimensions: 20 5 8" X 14 5 8"] Copper Coil Insulated Line Set display === 'none') { dd 18" Round Duct Pipe Fixed 45 horizontal blades LO1810 display === 'none') { dd Operating temperature from 40°f to +248°f [ 40°c to +120°c]