Pipe and pipe fittings drip tape fittings Used for watering row crops & vegetable farms or gardens. Flow Control Valve regulates or shuts off water flow through drip tape. Connects 16mm drip tape to 16mm poly tubing directly. Use large hole punch (Product Code: 5456) to make hole in poly tubing (PE pipe). Drip Tape fittings twist onto drip tape and are reusable material :plastic size :16mm application : connector package : carton has passed ISO9001 certification