Netafim 5 mm connectors are designed to make the connection between your poly distribution line and your 5 mm UV Super Flex white polyethylene feed line. Thread the connector into your 5 mm tubing. Select the location in the distribution line where you want your feed line to come out. Place a hole in your distribution line, using a hole punch and insert the barbed end of the connector. Now you are ready to choose your method of water delivery.