20 x 16 Merv 2 HVAC Pleated Filter, 12-Pack Round Stack Boot + Product Details Size –

+ Product Details Size – Duct end cap is 20" X 8" | 26-gauge galvanized steel end cap

If your hole is 14" wide by 20" tall

Universal Fit – Dimensions of 6-3/8" wide x 3-1/2" high x 3" deep make it compatible with most standard thermostat models

+ Product Details Size – 14"w X 18"h is the size for the duct opening measurement only

actual front end outer dimensions are approximately 22 5/8" width X 8 5/8" height

20 x 16 Merv 2 HVAC Pleated Filter, 12-Pack Round Stack Boot + Product Details Size –The W shaped pleats enlarge the surface area for capturing dirt and particles for cleaner air Get 3 MERV 2 AC filters per pack while only paying for 2 Dimensions are interchangeable for rectangular filters, but not square ones Let air circulate and cycle through your HVAC without obstructions