The McAlpine BOSSCONN82Z-GR is a grey mechanical soil pipe boss connector designed to connect a 4"/110mm soil pipe to a 57mm hole saw size. It includes a fixing tool for easy installation and is made from durable, corrosion-resistant materials capable of withstanding high pressure. This connector is suitable for domestic and commercial plumbing applications. To install, drill a 57mm hole in the soil pipe, insert the connector, and tighten it using the provided tool. The McAlpine BOSSCONN82Z-GR is a reliable and user-friendly solution for connecting 4"/110mm soil pipes to 57mm hole saw sizes. It is also available for 3"/82mm soil pipe and 1¼" and 1½" waste pipe sizes, suitable for waste water and condensate discharge. It features a simple dry fixing mechanical connection and a universal connection for pushfit or solvent weld waste pipe.