Various
Used to distribute warm and cold air.
Charlotte Pipe 4 In. x 10 In. Perforated PVC Drain and Sewer Pipe, Belled End (2-Row)
Southland 3/4-in x 36-in Galvanized Steel Schedule 40 Pipe
Cantex PVC Electrical Conduit Elbow
Genova Products Polypropylene Insert Reducing Coupling
Genova Products Threaded Caps