The Turbosmart Kompact 25mm plumb-back fitting is a direct-fit plumbing adapter for Kompact Dual Port and Plumb Back blow off valves, designed to create an airtight seal between the valve and the return plumbing. It’s intended to prevent leaks and maintain stable operation in plumb-back configurations while simplifying installation and long-term reliability for Kompact BOV systems.
Turbosmart BOV Kompact 25mm Plumb Back Fitting