247 fittings are made from 6061-T6 aluminium and CNC machined to ensure a precise, professional quality finish every time. Our 100 series cutter design provides superior sealing performance and is 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 offers superior strength along with uninterrupted flow. All our fittings undergo a forging process for added strength and durability then hand polished for a quality finish.