Balboa Heater Union Tailpiece [2" MBT x 2" S] (50085-WH)

Type:	Fittings & Valves: Unions
Mfr	Balboa Water Group
Mfg Part #	50085-WH
Hzn Part #	89-138-1003
Works With:	2" Flow Thru Heaters

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TAGS: balboawater, pvcfittings, unions

Details

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SEE REPLACEMENT PART: 417-5050

Important Product Note

2" Heater tailpiece

A heater union tailpiece is one of those plumbing parts that becomes extremely important the moment it no longer seals or fits the way it should. This Balboa Heater Union Tailpiece is designed for compatible 2 inch MBT by 2 inch slip applications where restoring the heater-side plumbing connection is the key to getting the system back into dependable service.

The tailpiece matters because it helps create the transition point between the heater assembly and the surrounding plumbing. If that point is compromised, even a good heater can become part of a repair that never feels fully trustworthy. Replacing the tailpiece is often the cleanest way to restore confidence in that connection.

The 2 inch by 2 inch relationship helps define the intended application and keeps the replacement aligned with the original plumbing geometry. That kind of correct fit is what makes a union repair feel straightforward instead of uncertain.

Installed in the proper heater setup, this tailpiece helps restore a cleaner plumbing connection and supports a more dependable heater-side repair overall.

Heater union tailpiece for compatible 2 inch MBT by 2 inch slip applications
Helps restore the plumbing connection at the heater assembly
Useful when original tailpieces are worn, damaged, or leaking
Supports a cleaner and more dependable heater-side repair
Improves confidence in fit and long-term connection quality

Balboa Water Group – Spa Systems, Pumps, Heaters & Control Components

Who is Balboa Water Group?

Balboa Water Group is the world’s largest manufacturer of spa systems, components, and control technology, producing an estimated 70% of all hot tub systems globally. With decades of industry leadership, Balboa is the driving force behind many of the pumps, heaters, control packs, and circuit boards used by top spa brands. Known for innovation, reliability, and engineering excellence, Balboa has become the standard for spa system performance worldwide.

What products does Balboa Water Group specialize in?

Balboa specializes in complete spa system solutions, including control systems, topside panels, circuit boards, heaters, pumps, sensors, jets, and accessories. Their systems are designed to seamlessly integrate temperature control, water flow, filtration, and lighting. Balboa products are widely used in both new spa manufacturing and replacement parts, making them one of the most commonly sourced brands for hot tub repair and upgrades.

Why choose Balboa Water Group parts for your pool or spa?

Balboa parts are trusted for their compatibility, durability, and consistent performance across a wide range of spa systems. Because Balboa components are used in the majority of hot tubs on the market, finding compatible replacement parts is easier and more reliable. Their advanced control technology allows precise management of temperature, jet functions, and energy usage, helping extend equipment life while improving the overall spa experience.

How do you identify and choose the correct Balboa Water Group part?

To select the correct Balboa part, it’s important to match your existing system’s model number, circuit board type, heater configuration, and topside control compatibility. Checking labels on control packs and referencing wiring diagrams or product manuals ensures proper fit and function. Choosing the correct Balboa component helps maintain system efficiency, prevents compatibility issues, and ensures safe operation.

Need help finding the right Balboa Water Group part?

At Bath & Spa Parts Online, we carry a wide selection of Balboa Water Group pool, spa, and bath parts ready to ship. Can’t find what you need? Contact our Product Specialists at 800-918-9143, use the live chat, or visit our Contact Us page. For installation guides, part diagrams, and troubleshooting resources, visit the Bath & Spa Parts Online Knowledge Base for expert support.