247 fittings are made from 6061-T6 aluminium and CNC machined to ensure a precise, professional quality finish every time. Our 200 series PTFE fittings are assembled with quality Nitrile O-ring seals to ensure the protection against all oil and fuels including E85, providing a leak-proof seal when using Ethanol based fuels other O-rings don't offer. The full flow one-piece design offer superior strength along with uninterrupted flow. All our fittings undergo a forging process for added strength and durability then hand polished for that quality finish.