Use to vent category II, III and IV appliances. FASNSEAL is for use with natural gas or propane Categories II, III and IV appliances or Canada’s Type BH Gas Vent Systems, having a maximum rated operating temperature of 480°F and a maximum positive pressure of 15 FASNSEAL Flex 6 in. water column. FASNSEAL can be used on a wide range of applications, including: high efficiency gas boilers, furnaces, booster heaters, pool heaters, water heaters, unit heaters, or tankless water heaters. UL 1738 and ULC S636 Systems.FASNSEAL can be used on a wide range of applications, including: high efficiency gas boilers, furnaces, booster heaters, pool heaters, water heaters, unit heaters, or tankless water heatersPatented built-in mechanical locking band and triple-lipped directional gasketsEngineered with smooth clean welds located 90° from mechanical locking bandsAll FASNSEAL components which come in contact with exhaust gases and condensates are now silicone free, important design and manufacturing feature greatly reduces the chances of system breakdown and failureWelded seams ensure a leak-free product that is meant to last
WARNING: This product can expose you to chemicals including Chromium hexavalent compounds which are known to the State of California to cause cancer and birth defects or other reproductive harm. https://www.p65warnings.ca.gov/