Waterway Heater Tailpiece [1-1/2" Buttress Thread x 1-1/2" Slip Tailpiece] [No O-Ring] (417-4090)

Fittings & Valves: Unions
Waterway Plastics
417-4090
89-238-1020
COMPARE AT $11.28
OUR PRICE $6.34
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 417-4090 heater tailpiece is designed for compatible heater union applications using a 1-1/2 inch buttress thread connection and a 1-1/2 inch slip tailpiece. This tailpiece is useful where the heater connection needs to be restored on the plumbing side while matching the proper thread format for the original union assembly.

This version is supplied without an O-ring, making it a practical option when the seal is being sourced separately or when only the hard tailpiece portion needs replacement. Using the correct Waterway component helps preserve a cleaner and more accurate heater union fit.

For compatible heater plumbing service, this Waterway tailpiece is a practical replacement when a 1-1/2 inch buttress-thread-to-slip configuration is needed without an included O-ring.

  • Waterway heater tailpiece
  • 1-1/2 inch buttress thread x 1-1/2 inch slip tailpiece
  • Supplied without O-ring
  • Useful for heater union repair and rebuild work
  • Supports cleaner and more accurate connection restoration
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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