610 series hose has a PTFE inner liner with 308 stainless steel braid. It is a durable and professional hose that resists leaks and fumes. It is rated to up to 4000 PSI. 

* Nylon & Stainless steel outer cover for excellent abrasion resistance.
* Recommended for fuel, brake, Methanol, E85, Alcohol, Nitro, transmission, clutch, nitrous, power steering, coolant, oiling, hydraulics & vacuum applications
* To be used with our PTFE fittings here and here

Minimum temperature -70 °C, Maximum the temperature 250°C

The outer diameter will vary from manufacturer to manufacturer so we measure the inner diameter:

PTFE-core hose measurement (600/610 Series) inner diameter:

AN3 = 3/16" ~3.1mm
AN4 = 3/16" ~4.8mm
AN6 = 21/64" ~8.1mm
AN8 = 27/64" ~10.7mm
AN10 = 33/64" ~13.0mm
AN12 = 41/64" ~16.3mm
AN16 = 7/8" ~22.2mm

Priced per metre