Low pressure polyether plastic tubing used for connecting water to the misting system. Comes in 12mm, 10mm, and 8mm sizes. 12mm size is used with our water hose adapters to connect water to filter inlet for 150A pumps. 10mm tubing is used to connect filter outlet to the misting pump input on 150A pumps. 8mm is used to connect water source to the optional filter and/or from optional filter to the misting pump input on 050SA pumps. Sold in spools with 25ft increments.