Waterway Pump Union Assembly [1" FBT x 3/4" Slip Tailpiece] [w/O-Ring] (400-1960)

Type:	Fittings & Valves: Unions
Mfr	Waterway Plastics
Mfg Part #	400-1960
Hzn Part #	89-270-1004

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TAGS: pvcfittings, unions, waterway

Details

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SEE REPLACEMENT PART: OBSOLETE

The Waterway Pump Union Assembly [1" FBT x 3/4" Slip Tailpiece] [w/O-Ring] (400-1960) is a replacement union, tailpiece, nut, or assembly used to create a serviceable connection in pool, spa, bath, or equipment plumbing. It is intended for applications where pumps, heaters, chlorinators, or manifolds may need to be removed without cutting rigid pipe.

This Waterway Plastics part supports a cleaner repair because the union connection can be separated and reassembled when the correct gasket, O-ring, thread, and tailpiece style are matched. Key identifiers include 1" FBT x 3/4" Slip Tailpiece, w/O-Ring. Notable sizing references include 1", 3/4". Confirming the exact part number helps avoid mismatched buttress threads, slip ends, barb ends, or tailpiece sizes. Use it when rebuilding equipment pads, replacing damaged union hardware, or restoring a leak-resistant connection around serviceable equipment. For best results, clean the mating surfaces during installation and replace related seals or gaskets whenever they show compression set, hardening, or visible damage. Part number 400-1960 should be used as the primary identifier when cross-checking compatibility.

Creates a serviceable connection for pumps, heaters, or plumbing lines
Match thread, tailpiece, gasket, O-ring, and pipe size before installation
Helps simplify future maintenance and equipment removal
Useful for leak repair, rebuilds, and equipment pad service work
Built for pool and spa plumbing replacement applications

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.