Tuffbox Register Box
TuffBox is a heavy, 1-piece durable polymer shell. Virtually air-tight molded design delivers 100% of air flow. Using an innovative stepped design supporting 3 duct sizes, collars are 1" & beaded to hold flexible duct in place while securing strap.
- Stepped Collar for multiple duct sizes
- Collar tabs easily tear away unneeded sections - allow on-site adjustment &labor savings
- Mounting Clip accommodates thicknesses up to 1-1/4"
- 5/8" standoffs provide correct depth to accommodate strapping/furring used with drywall
- Flange is flexible to conform to drywall backing, virtually eliminating leakage between grille and box