Silicone hose Heater hose

0,157" (4mm) 0,196" (5mm) 0,25" (6mm) 0,312" (8mm) 0,375" (9,5mm) 0,43" (11mm) 0,511" (13mm) 0,625" (16mm) 0,75" (19mm) 0,875" (22mm) 1" (25mm)