In order to ensure the waterproof performance of distribution boxes, manufacturers will strictly seal the joints of the box. Usually, rubber sealing rings or sealants are used for sealing to effectively prevent the intrusion of rainwater, sand and dust. After choosing your inlet/outlet holes and cutting them out, the seal is easy to install. This guide primarily analyzes structural engineering characteristics, technical specifications, and actual installation procedures to achieve optimal field performance. Accepts 6" Pipe! Accepts 6" Pipe! Accepts 6" Pipe! Accepts 6" Pipe! How to install and utilize the pipe seals that come with the Polylok distribution boxes. In addition, for some special interfaces.