LEGO part 5102c07 - Trans-Clear Hose, Pneumatic 4mm D. 7L / 5.6cm at BrickScout
BrickLink - Part 73590c03a : LEGO Hose, Flexible 8.5L with Tabless Ends (Ends same color as Tube, ends not removable) [Hose] - BrickLink Reference Catalog
LEGO® 621133 - 4501980 73590c02b
BrickLink - Part 73590c01b : LEGO Hose, Flexible 8.5L with Tabless Ends Black (Ends different color than Tube) [Hose] - BrickLink Reference Catalog
LEGO PART 78c08 Hose, Ribbed 7mm D. 8L | Rebrickable - Build with LEGO
LEGO Hose Rigid 14L BLACK (10 pcs) | BRICKshop - LEGO en DUPLO specialist
LEGO Black Plastic Hose 9.6 cm (12 Studs) (60676 / 63037) | Brick Owl - LEGO Marketplace
LEGO part 78c15 - Black Hose, Ribbed 7mm D. 15L at BrickScout