The Hi-Flow Inline valve steps up to bigger plumbing: -8, -10, -8 and -8 JIC ports instead of the -6/-8 layout on the other valves, with a 13/16"-36 spline input. It's the one to look at when you're running a high-volume pump setup and want the valve to flow with it.
When you order a control valve, tell us the torsion bar size you want. Howe offers .185, .200, .210, .220, .235, .250 and .265, with the smaller numbers giving an easier feel and the bigger numbers a stiffer, more connected one.
Howe Performance part number 725.