SWRED43 Galvanized 4" X 3" Single Wall Reducer/Increaser

SWRED43 Galvanized 4" X 3" Single Wall Reducer/Increaser. This Particular HVAC (Heating, Ventilation and AC) product is designed for light commercial and residential applications. This Increaser/Reducer is designed to withstand the rugged demands of continuous gas ventilation and to increase safety, ventilation and appliance efficiency. This SWRED43 4" X 3" Single-Wall Aluminum Increaser is designed and built to exhaust air from gas fireplaces, gas-fired furnaces, boilers, gas water heaters, and wall heater applications. This SWRED43 4" X 3" Single-Wall Aluminum Increaser is designed to connect two pipe lengths of different sizes. Generally as systems are ran throughout the building or home, the system reduces in size to increase air pressure. This Increaser/Reducer, like other duct-work products, features slip-fit connections, durable sheet metal body, and easy size identification. This Increaser/Reducer comes in a convenient size that assembles and installs with ease. Generally these galvanized and aluminum HVAC Products are designed to last for 25 + years.