What fitting on Keisler actuator

[esenior]

I've got a Keisler Hydraulic clutch setup on my 1969 Camaro, but the hydraulic line that attaches to the actuator is broken. Can someone tell me what size the fitting is on the actuator? I talked to Ben at Keisler, and he said it's an M11-1, but I can't find anything on the net for this fitting. If this is the correct fitting, anyone know where to get one? Prefer a hose fitting, but will use a tube fitting if necessary.

Thanks...Eric