The SmartFlo 50 mm Split Union is a plumbing accessory designed to work with SmartFlo pump systems — particularly those in the “SB” / “Boost Pump” series. It replaces a standard one‑piece union nut with a two‑part (split) union that includes the union body, O‑ring, and tail piece. This makes it easier to attach or detach the pump from existing plumbing without needing to cut or re‑glue PVC pipes.
It’s especially useful for installations, maintenance, or pump replacements — allowing quick removal of the pump for servicing, inspection, or winterising, while retaining the existing plumbing layout.