There is no maximum value.
1/2 Inch Bore Pvc Tube (Per Metre) For Home Brew & Wine Making Syphons
5/16 Bore Syphon Tube - Food Grade PVC - Per Metre - Homebrew Winemaking Cider
1/4" Bore PVC Syphon Tube - Per Metre - Winemaking Homebrew
Bore Syphon Tube - Food Grade SILICONE Hose Home Wine Beer Cider Brewing P&P UK
Syphoning PVC Tube 1/4" (6mm) / 1/2" (12mm) Per M Home Brew Wine Beer Food Safe
