WC‑15 Variable Speed Fan Controller – 5A, Dial Control with On/Off Switch, RFI Filter, Brushed Aluminum Plate 7" Diameter Ideal for Walls & Ceilings: SV2414 HP Product Details Perfect Fit 12" Round Duct Pipe

Ideal for Walls & Ceilings: Designed for seamless installation in standard 14" X 14" duct openings

Key features:

the kit features pre-flared ends with nuts

+ Product Details Size - 24"w X 26"h is the size for the duct opening measurement only

the trunk of the HVAC system either runs through the ceiling or the basement of the home

WC‑15 Variable Speed Fan Controller – 5A, Dial Control with On Off Switch, RFI Filter, Brushed Aluminum Plate 7" Diameter Ideal for Walls & Ceilings: SV2414 HP Product Details Perfect Fit 12" Round Duct Pipe Ideal for Walls & Ceilings: Designed for seamless installation in standard 14" X 14" duct openings Key features: