For BMW E10 E12 E23 E24 Vacuum Hose 3.5 X 7.5 mm - Black Silicone OEM Contitech | eBay
AC PERFORMANCE Silicone Vacuum Tubing Hose, ID 9/16" (14mm), Wall Thickness 3.5mm, 5 Feet per roll (1.5 Meter), Black 60 psi Maximum Pressure : Amazon.co.uk: Home & Kitchen