2x2 Union PVC | Pentair | 473381 | (Fits ThermalFlo/UltraTemp)

The Pentair ThermalFlo/UltraTemp 2 x 2" Union w/ O-Ring | 473381 is designed to give you precise water temperature control, extending your pool season. This inline union fitting connects seamlessly to Pentair ThermalFlo/UltraTemp systems, delivering reliable flow with a built-in O-ring seal to minimize leaks. By reducing heat loss at joints, it helps your pool heater or heat pump maintain consistent temperatures more efficiently. Ideal for residential pool heating setups, this replacement part keeps your temperature control steady while simplifying maintenance. The 2 x 2 inch union size ensures compatibility with standard piping, making installation straightforward for DIYers and professionals alike.

• Secure O-ring seal for leak-free operation
• 2 x 2 inch union for versatile compatibility
• Easy installation with standard connections
• Optimized temperature control helps extend swimming season
• Durable, reliable Pentair component built for long-term use

Discover how this union can improve temperature control and system reliability—add it to your pool toolkit and enjoy a steadier, more comfortable swim season.