4mm fittings and accessories are important to use as most tubing is 4mm thick. These are appropriate products to join, plug and clamp with.
4mm joiner THREAD end + BARBED end - for screwing into pipe
4mm Pot Stake to hold dripper line (bag=50)
4mm end plug / goof plug
4mm hole punch + spanner
4mm joiner / takeoff, barbed
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