Pentair U11-200PSZ 2 Inch Union Collar

Replacement 2-inch union collar (Pentair U11-200PSZ) for Sta-Rite System 3 SM-Series cartridge filters, IntelliPro VS 3050 pumps, Clean & Clear RP filters, and Pentair separation tanks. Threads onto the union tailpiece to compress the O-ring, creating a leak-tight connection that’s easy to break down for service. Uses a 2-inch female buttress thread and is a genuine OEM part that replaces Pentair 16739.