12" X 12" Steel Access Panel Door For Wall / Ceiling Application With Slotted Lock - [Outer Dimensions: 13" Width X 13" Height] Copper Coil-Insulated Line Set actual front end outer dimensions RGADJ-3012 7" Round Duct Pipe Quality Packaging carefully packaged

actual front end outer dimensions are 9

+ Product Details Perfect Fit & Easy Sizing - Designed for a 12" x 20" or 20" x 12" duct opening (measured at the opening)

if your hole is 20" wide by 14" tall

this HVAC air supply grille offers the perfect combination of style

12" X 12" Steel Access Panel Door For Wall Ceiling Application With Slotted Lock [Outer Dimensions: 13" Width X 13" Height] Copper Coil Insulated Line Set actual front end outer dimensions RGADJ 3012 7" Round Duct Pipe Quality Packaging carefully packaged actual front end outer dimensions are 9 + Product Details Perfect Fit & Easy Sizing Designed for a 12" x 20" or 20" x 12" duct opening (measured at the opening)