Profile: East Coast Hydro Testing, Inc. provides service for all cylinder needs. We specialize in hydrostatic pressure testing of all cylinder types and sizes. We also re-certify acetylene cylinders and all types of cylinder maintenance. We offer sandblast external and internal, external painting, all types of repair work, steel collar replacement, chemically cleaning, valves and parts. We sell new cylinders or refurbished cylinders of all types and sizes.