Amazon.com: Brass Pipe Fitting-1/2" NPT Female×1/2" NPT Female Pipe Coupling-Chrome Plated Shower Head Coupling-Converter Adapter, for Home Plumbing Pipes Connect (1, 1/2" x 1/2" NPT Female) : Industrial & Scientific Brass Pipe Fittings, Shower Heads, Pipes, Plumbing, Nespresso, Connect, Coffee Maker