The SpecSeal® Firestop Collar is a factory-manufactured device designed to protect plastic pipes
penetrating fire-rated walls and floors. Utilizing a heavy gauge galvanized metal collar to house a
molded intumescent insert, the SpecSeal® Collar is specifically sized to fit 1-1/2", 2", 3", 4", and 6"
trade sized pipes.
This product utilizes STI’s patented two-stage intumescent technology, providing a very responsive and highly directionalized expansion. Expansion is extremely fast, providing quick closure for burning combustible pipes.
When exposed to temperatures in excess of 250°F (121° C), the SpecSeal® Collar’s molded insert begins to expand (intumesce) rapidly to form a dense, highly insulative char. Its free expansion ranges from 16-24 times original (pre-expanded) volume. Expansion continues up to 1,000° F.
ThinkVacuums offers mounting brackets, central vacuum systems, parts, and more. If you need help installing your central vacum call us today: 1.800.322.2965.
Cheaper hose socks found on the market use a lower quality material and are rough, easily torn and don't provide a tight fit around the hose. They generally don't stand up to the average household abuse for more than 6 months. Pay for quality the first time!
NOTE: As a courtesy, when you purchase a hose and hose sock from ThinkVacuums.com we will install it on your hose free of charge. If you order the hose sock separately the helpful video below will guide you through how easy it is to put on.