USED Armstrong PTA12

573100-010 Armstrong A600-L Expansion Tank. Tank Volume Gal/L: 158(600). Armstrong Series L Bladder Expansion Tanks. Armstrong Expansion Tanks are designed to reduce tank sizes by up to 80% over standard designs. Expansion tanks use compressed air to maintain system pressures by accepting and expelling the changing volume of water as it heats and cools. Item is Sold AS-ISWILL SHIP. BUYER PAYS ALL PACKAGING AND SHIPPING COSTS.