We want to pass on our savings to our customers, so we've lowered the price of this item. However, since our price is now below the manufacturer's suggested retail price, we are restricted by the manufacturer from showing the price right away.
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.