3" Horizontal Stainless Steel Z-Vent Wall Hung Water Heater Vent Kit for Eccotemp 40HI-LP and 40HI-NG models.  It also works Paloma/Rheem models: RTG-42, RTG-53, PTG-42, PH-1, PH-20.

Features

• (1) Termination Hoodwith backflow preventer
• (1) 3" x 90 Degree Elbow
• (1) 3" x 1' Pipe
• (1) 3" Wall Thimble
• (1) 3" Appliance Adapter

Made of AL-294C stainless steel.  This is Cat II/III approved.