“I feel like it’s over priced but I bought it because I had to for my new Takagi Tankless water heater I just installed. The description said it comes with everything necessary to put it together, but it’s actually missing quite a bit. You still need to buy additional pvc pipe to and fittings to get it connected to the water heater, plus the intake needs to be 3 feet from the exhaust and requires two elbows to Point it down.”