B-Vent Tee Caps are essential components for Category 1 gas-burning appliances, such as furnaces, water heaters (HWT), boilers, pool heaters, unit heaters, gas fireplaces, and infrared tube heaters. Approved for both Natural Gas (NG) and Propane (LP), these tee caps provide a secure and reliable connection. With a maximum temperature rating of 243°C (470°F), they ensure safe and efficient venting for your heating systems, offering durability and performance for a variety of applications.