SPECIAL ORDER ITEM. Review Returns Policy before purchase. Carbon steel press system for use in chilled water, hydronic heating, compressed air and fire sprinkler applications. Fittings are designed for use in piping systems utilizing ASTM A53, A106, A135 and A795 schedule 5 to schedule 40 black steel pipe. Makes secure connections in less than seven seconds with no oil or heavy threading equipment needed. Connections can be made wet or dry.