Silver 1lbs Silver Brazing Solder Rods - HVAC - 5 % Silvaloy 28 Sticks 18" Diameter + Product Details Perfect Fit Width_20in These won t hinder RFG1620 FBA

+ Product Details Perfect Fit & Easy Sizing - Designed for a 14" x 6" or 6" x 14" duct opening (measured at the opening)

Hose Diameter Connection Size: 6mm i/d

+ Product Details Size - 38"w X 14"h is the size for the duct opening measurement only

this stick-on collar plays a crucial role in HVAC ducting systems

actual front end outer dimensions are approximately 36 5/8" width X 34 5/8" height

Silver 1lbs Silver Brazing Solder Rods HVAC 5 % Silvaloy 28 Sticks 18" Diameter + Product Details Perfect Fit Width_20in These won t hinder RFG1620 FBA + Product Details Perfect Fit & Easy Sizing Designed for a 14" x 6" or 6" x 14" duct opening (measured at the opening) Hose Diameter Connection Size: 6mm i d