ZoomLock® fittings, designed for the air conditioning and refrigeration markets, allow contractors to make secure leak-free connections in seconds. It means less time on the job and more money in the contractor’s pocket. fittings provide clean, leak-proof connections for refrigerant lines up to 700 psi. By eliminating concerns about gas and flames, fittings offer more flexibility in where and when you can work, plus there’s no need to nitrogen-purge the lines.