Designed for new construction or professional plumbing Utilizes brass fittings and copper crimp rings, and eliminates the need for solvents, chemicals, solder, and flame Its a no sweat plumbing methods keyed to the demand of reduced lubing costs Offers fast, efficient installations Only annealed copper crimp rings are appropriate for use with copper and brass insert fittings Not only perfect for plumbing applications but can be used as a permanent connection to radiant heating manifolds, hot water baseboard, or even a repair coupling in radiant heating 10 per pack 1/2