High Efficiency Furnace/Water Heater Air Intake Screen 2in

thingiverse

This is an air intake screen for high-efficiency furnaces and hot water heaters that utilize 2-inch PVC piping for the air intake. The end is tapered and should only need to be pressed in, but can also be glued securely with some silicone caulk. Use this to prevent critters from making a home inside your air intake. Depending on the material you choose, you could also use this on the exhaust. I have also posted a 3-inch version.