UASAM 2-Inch Spa Heater Split Nut Union with Screws & Gasket – Replacement

Fast, reliable hot tub heater union repair.

The UASAM 2-Inch Spa Heater Split Nut Union is designed to simplify emergency repairs and routine maintenance on common 2" heater assemblies. With its sturdy 3" outer diameter and a precise 2.30" inner bore, this split nut creates a solid, sealed connection between the heater union body and the pump. The kit includes a dedicated 2" heater gasket and screws, making a secure seal possible with just a screwdriver. This isn’t a guaranteed fix, but it offers a practical, ready-to-use solution when a quick repair is needed during a maintenance window or after a minor leak.

What you get

• Split nut union sized for 2" heater assemblies with an outer diameter around 3.35"
• 2" heater gasket for reliable sealing between union and pump
• Screws for secure installation and a snug fit

Key compatibility and fit tips

• Compatible with Balboa 2" heater unions and many other brands such as Gecko, Coleman, HydroQuip, Spa Builders, Correctech, and Spanet
• Outer diameter approximately 3.35"; inner diameter about 2.30"; designed to mount onto the existing pump union holding flange
• Standard 2" MBT (Buttress) thread is common on many pumps

Installation guidance

To achieve a proper seal, do not match the pipe size to the nut. Align the gasket between the union and pump, then screw the split nut onto the pump threads. Use a screwdriver for a straightforward installation, and avoid over-tightening to prevent damage.

This kit is intended for standard hot tubs and 2" heater assemblies, and it is not suitable for inflatable hot tubs. If you are unsure about model compatibility, compare your heater union dimensions and thread style with the information above before purchasing.

Real-world usage

Imagine a chilly evening, your spa ready for guests but a small leak pops up at the heater union. With this kit, a quick swap of the split nut, gasket, and screws can restore a tight seal, reducing downtime and keeping the soak inviting. The included components are compact enough to stash in a maintenance kit for on-the-spot repairs, helping you stay prepared without professional service calls.

Note: This product reference summarizes the features and typical applications based on the listed specifications. It highlights practical benefits and setup considerations without asserting outcomes. Use as part of a thoughtful spa maintenance plan to explore potential improvements in ease of repair and sealing reliability.