The 4mm single Barb x Thread adaptor is used to connect to micro 4mm supply and 13mm main supply pipe.Quick and easy   installations for drippers, micro spray jets and mini sprinklers in garden watering systems. To install thread the adaptor into the 4mm micro supply pipe, now with a hole punch tool punch a hole into the main 13mm supply pipe and then push the barbed end in.

Product Details;

• Used for connecting to 4mm micro or 13mm main supply pipe.
• Made from UV stabilised materials for long life.
• Range fits common EU and International pipe sizes.
• Fully compatible with hozelock watering systems.