Oval Stack Head - 10" X 6" - 7" - Compatible with Duct 7" Wall Angle Register Boot + Product Details Size -

+ Product Details Size - 20"w X 22"h is the size for the duct opening measurement only

+ Product Details Size - 14"w X 14"h Is The Size For The Duct Opening Only

+ Why HVAC Premium

Actual Filter Size – 33 3/4"w x 21 3/4" x 1"

+ Product Details Size - 10"w X 26"h is the size for the duct opening measurement only

Oval Stack Head - 10" X 6" - 7" - Compatible with Duct 7" Wall Angle Register Boot + Product Details Size -+ Product Details Size & Compatibility The size of galvanized sheet metal oval stack head with collar is 10" X 6" 7" and it is compatible with Duct 7" Superior Quality Made in the USA. Our product is made of high quality galvanized sheet metal with crimped ends (snap lock design) for easy fitting and secure connection Applications The oval stack head with ears and throat are used to right angle transition from oval pipe to sidewall grille or register