4.6 mm (3/16")
Gardena 8334-20, Pipe coupling, Drip irrigation system, Plastic, Gray, 76.2 / 16 mm (3 / 16"), 76.2 / 16 mm (3 / 16")
Gardena 8334-20. Product type: Pipe coupling, Suitable for: Drip irrigation system, Material: Plastic