SELKIRK 4RV-3 Type B Gas Vent Pipe, 4 in OD, 3 ft L, Galvanized Steel

Easy to assemble and can be combined to obtain the required installation height. Couplers overlap 1-1/2" when joined. Assembled length is 1-1/2" less than listed lengths. Size refers to the inside diameter of the pipe or fitting. The outside diameter of RV is approximately 1/2" larger. Type B gas vent. null -

Manufactured in United States Easy to use Highly durable Designed for use on approved gas appliances in residential and light industrial application Involves incorporating a LockTab in the female end of each gas vent section a accessories The incorporation of a LockTab feature simply improves our lock system by adding flexibility and meeting market needs Gives installer the option of engaging the LockTab instead of using sheet meal screws