Make sure you read the description carefully. I had to order the correct length after receiving the 6" pipe I ordered (which was actually only a 2.5" extension.) This was my first time using 3/5 concentric so maybe everyone else already knew this. Anyway, the fit turned out perfect and resulted in a professional tankless installation that replaced my gigantic 1940's boiler in the basement.
"My tankless water heater arrived in two days via FedEX. CPO even deleted a needless item that I ordered which was included with another item. I installed the water heater and it works perfectly. Couldn't be happier..." - Billy B.
*Offer valid on first order for new email subscribers only. Previous purchasers and email subscribers on any of our CPO sites do not qualify for this offer. Economy shipping only. Excludes freight items.