Pipestation® Drain Down Hose Kit, 10 Metre Pipe Including 2 Storage Straps and Clips, Anti Kink Technology for Flexible Fast Flow Drain Off of Central Heating System, Radiator Repair Servicing : Amazon.co.uk:
Thought you all could use a good laugh. Radiator hose, wood plug, and some clamps to connect the water softener to the drain. : r/Plumbing
How to drain down a pressurised system | BestHeating Advice Centre
Audi A4 B8 2.0 TFSi Bottom Radiator Hose Pipe with Drain Cock 8K0121049M (Item #304200)
Washing Machine Drain Hose with Crook - 2.5m - 13467