Rinnai Direct Vent Tankless Water Heaters 21.0″–39.6″ Vent Extension Kit
TheRinnai FOT-103 Vent Extension Kit is designed to extend the exhaust pipe and air intake hose for Rinnai 551 and 1001 direct vent tankless water heaters. This kit provides flexible installation options, ensuring proper exhaust venting and combustion air intake for safe and efficient operation of your Rinnai appliance.