Netafim 5 mm connectors are designed to make the connection between your poly distribution line and your 5 mm UV Super Flex polyethylene (HGC747561) feed line. Thread the connector into your 5 mm tubing, 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 Netafim Drip or Spray stakes for your preferred method of water delivery.