12" X 12" Steel Access Panel Removable Door For Concealed Wall / Ceiling Application With Slotted Lock - [Outer Dimensions: 13" Width X 13" Height] steel will fit on a pipe

will fit on a pipe that's 1/2" on the "outside" (OD)

Actual Filter Size – 31 3/4"w x 35 3/4" x 1"

This product immediately improves the appearance of mini-split

+ Product Details Size – 34"w X 32"h is the size for the duct opening measurement only

Designed for optimal air flow and lasting durability

12" X 12" Steel Access Panel Removable Door For Concealed Wall / Ceiling Application With Slotted Lock - [Outer Dimensions: 13" Width X 13" Height] steel will fit on a pipe+ Product Details Size 12"w X 12"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 13" width X 13" height Installation Easy installation Small bendable ears for flexible installation just screw the sides of the access panel frame into your duct hole. Our HVAC Access Door can be used in both commercial and residential settings. Design Easy access removable door provides easy access removable door