4mm LDPE Riser Tube - 10 Meter Length for Hydroponics, Aquaponics, and Drip Irrigation Systems | Durable Plastic Water Pipe for Indoor/Outdoor Gardening

4mm Low Density Polyethylene (LDPE) riser tube is not as soft or flexible as PPVC and can be used with threaded fittings. Less effected by heat it holds onto both threaded and barbed fittings better than the PPVC tube.