Waterway Heater Union Tailpiece [2" Buttress Thread x 2" MPT] [w/O-Ring] (417-5140)

Fittings & Valves: Unions
Waterway Plastics
417-5140
89-238-1055
COMPARE AT $17.92
OUR PRICE $10.03
STOCK STATUS IN STOCK Ships Usually the Same/Next Business Day
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Under 25 lbs. Contiguous USA
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The Waterway 417-5140 heater union tailpiece is designed for compatible heater applications using a 2 inch buttress thread connection and a 2 inch male pipe thread outlet, and it includes an O-ring. This style is useful where the heater union must transition directly into a threaded plumbing path while still remaining part of a serviceable assembly.

The included O-ring helps make the replacement more complete, and the threaded outlet format can be especially practical in systems already built around male-threaded downstream connections. This Waterway tailpiece is a strong option when accurate heater union compatibility matters.

For compatible heater plumbing service, this Waterway tailpiece is a practical replacement when a 2 inch buttress-thread-to-2 inch male-thread union configuration is needed with included sealing support.

  • Waterway heater union tailpiece
  • 2 inch buttress thread x 2 inch male pipe thread connection
  • Includes O-ring
  • Useful for threaded heater union repair and replacement
  • Supports cleaner and more dependable reassembly
Waterway Plastics – Spa Jets, Pumps, Filters, Valves and Pool & Spa Components
Who is Waterway Plastics?

Waterway Plastics is a leading manufacturer of pool and spa components, known for durable construction and broad product compatibility. With decades of experience, Waterway provides essential parts used in both residential and commercial aquatic systems.

What products does Waterway Plastics specialize in?

Waterway Plastics specializes in spa jets, pumps, filters, valves, manifolds, and plumbing components. Their product lineup includes critical parts used in spa and pool systems for water circulation, filtration, and hydrotherapy performance. Waterway components are widely used in both OEM and replacement applications.

Why choose Waterway Plastics parts for your pool or spa?

Waterway Plastics products are known for reliability, compatibility, and long-lasting performance. Their components are engineered to withstand water pressure, chemical exposure, and continuous operation. Spa owners and professionals choose Waterway for dependable parts that maintain system performance and extend equipment life.

How do you identify and choose the correct Waterway Plastics part?

To select the correct Waterway component, it’s important to match specifications such as size, connection type, jet style, and system compatibility. Reviewing model numbers and part dimensions ensures proper fit and function. Choosing the right part helps maintain efficient operation and optimal spa performance.

Need help finding the right Waterway Plastics part?

At Bath & Spa Parts Online, we carry a wide selection of Waterway Plastics 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.

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