John Guest White Reverse Osmosis Tubing 1/2 Inch - Per Metre
4 inch hdpe pipe | Polyethylene agricultural pipe
PA1200-NTx20m – 20m roll 1/2 Inch Natural Polyethylene Tubing
Raindrip 052020P Supply Tubing, 1/2 in x 200 ft, Green Drippers, Emitters, Irrigation Parts, and Drip Systems, Black Polyethylene, 1/2" x 200" : Amazon.co.uk: Garden