A.Y. McDonald Manufacturing Co.’s fast connect fittings come in 3/4-inch, 3/4-by-1-inch and 1-inch sizes. They use a dual-thread design made from two brass components, two compression gasket assemblies and one plastic spacer. It uses a tighten-to-stop feature and no-lead brass material. It is ideal for coupling two pieces of copper when CTS pipe is required. 800/292-2737; www.aymcdonald.com.

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