4" Vertical Stainless Steel Wall Hung Vent Kit for horizontal installation of Eccotemp 45HI, EL22i, and SH22-I whole home indoor tankless water heaters. You may need to purchase additional Eccotemp straight pipe. 

Includes:

• (1) 4” Rain Cap
• (1) 4” Top Support/Storm Collar
• (1) 4” Adjustable Roof Flashing
• (1) 4” Universal Adapter with Backflow Preventer
• (1) 4” Condensation Drain Pipe
  
  

Special gas vent kits are all made of AL-294C stainless steel and are category II/III and UL compliant.