Introducing Retrotec's Grill Mask: The Ultimate Register Sealing Tape Looking for a reliable register sealing tape that stays put and saves you valuable time? Your search ends with Retrotec's Grill Mask! Experience frustration-free sealing and faster results, thanks to its superior sticking power. Superior...

Introducing Duct Mask: Precise Testing Designed as an adhesive-backed plastic film, DuctMask™ effectively seals registers, so you can focus on obtaining accurate results. It's the perfect companion for measuring duct leakage with a Duct Blaster® or Minneapolis Blower Door™. Ideal for Duct Cleaners Too...