SpecSeal RTC Firestop Collars adapt to the size combustible pipe that you are working with. One collar is designed to address standard 3 in. & 4 in. plastic pipes as well as their associated couplings. RTC Firestop Collars adaptable nature make them an excellent tool to have at hand when bringing combustible penetrations up to code.

Features

• Adjustable - one collar fits 3” (89 mm) pipe, 3” (102 mm) coupling, 4” (114 mm) pipe, and 4” (127 mm) coupling
• Rapid expansion - closes off burning pipes quickly
• Small profile - use it in all the tight spots
• Flexible & durable - no loose flakes (eye hazards)
• Water resistant - no water soluble or hygroscopic ingredients
• High volume char - expands up to 60 times