Waterway Universal Plug [2" NPT with O-Ring] [Black] (400-6651)

Fittings & Valves: Plugs
Waterway Plastics
400-6651
_400-6650
400-6650
449277 , 806105082299 , WW4006650B
COMPARE AT $12.49
OUR PRICE $6.99
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Under 25 lbs. Contiguous USA
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The Waterway 400-6651 universal plug is designed for compatible plumbing applications using a 2 inch NPT threaded connection and includes an O-ring, with a black finish. A plug like this is especially useful where a larger threaded opening must be sealed while also maintaining a dependable sealing surface at the assembly point.

The included O-ring helps make this Waterway plug a more complete service part, and the black finish can be a better visual match in darker plumbing or equipment environments. Replacing the plug and seal together often leads to a cleaner, more reliable repair.

For compatible threaded plumbing and service applications, this Waterway universal plug is a practical option when a 2 inch closure with integrated sealing support is needed.

  • Waterway universal plug
  • 2 inch NPT thread with included O-ring
  • Black finish
  • Useful for sealing larger threaded openings
  • Supports cleaner and more dependable service work
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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