Waterway Ell Assy [1-1/2"s x 1-1/2" Spg x 3/8" FPT Plug O-Ring] (400-4120)

O-Rings
Waterway Plastics
400-4120
_400-4120
COMPARE AT $9.99
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TAGS: o-rings, waterway

The Waterway Ell Assy [1-1/2"s x 1-1/2" Spg x 3/8" FPT Plug O-Ring] (400-4120) is a Waterway Plastics replacement component designed to help maintain a reliable seal in compatible plumbing and equipment connections. Built for the listed configuration and part number 400-4120, this component helps make targeted equipment repairs easier without replacing a larger assembly unnecessarily.

It is intended for repair situations where a worn, flattened, cracked, or missing sealing component can lead to leaks or reduced system performance. Waterway parts are commonly used across pool, spa, and bath applications, making correct identification especially important before installation. Review the product name, measurements, color, connection style, and part number carefully against your existing component.

  • Helps create a secure equipment seal
  • Useful during leak repair and routine maintenance
  • Supports compatible Waterway assemblies
  • Good replacement for worn or aging seal components
  • Confirm dimensions and part number before installation
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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