Tropic Seas Spas Pump Union, 2 x 2-1/2 Inch Thread Adapter
$15.99
Tropic Seas Spas Pump UNION 2×2.5 thread adapter for Tropic Seas Spas plumbing and equipment repairs. Size group: 2-1/2″ plumbing. Part type: Pump Union / Fitting.
Not 100% sure this is the correct replacement part? Use the fitment verification form below before ordering.
✅ Not Sure It Fits? Verify Before Ordering
Hot tub part compatibility can vary by spa brand, model, year, serial number, control system, and part revision.
To help us identify the correct replacement part, please send clear photos of:
Your existing part label or sticker, if present
Your spa serial number sticker
The leaking part and nearby plumbing connections
The equipment area or installation location, if accessible
EZ Hot Tub Parts can help confirm fitment before you order and help reduce costly returns.
This OEM Tropic Seas replacement plumbing part is used in the Tropic Seas Spas repair ecosystem. Plumbing fittings are matched by pipe size, connection style, shape, port count, and the part being cut out rather than by spa model name alone.
Repair size group: 2-1/2″ plumbing
Part type: Pump Union / Fitting
Connection details: 2-1/2″ + 2″; Thread/NPT
Connection style: Thread/NPT
Commonly used for: Connecting pump or equipment plumbing where a removable union connection is needed
This part is supplied through the Artesian Spas OEM parts network for Tropic Seas Spas. For freeze damage or leak repairs, you may need more than one plumbing piece because glued fittings often have to be cut back to clean pipe before the repair can be rebuilt.
Fitment Notes
Compare this part to the piece removed from your spa. Check the pipe size, slip/socket, spigot, barb, threaded connection, number of ports, angle, and whether the part connects to a pump, manifold, valve, suction, drain, jet line, or waterfall line.
Tropic Seas Plumbing Parts FAQs
This page covers the Tropic Seas replacement part identified by EZ Hot Tub Parts as TS-21-0087-48. Use the part number as a helpful reference, but always compare the pipe size, connection style, shape, and port layout to your existing part before ordering.
Match the pipe size, connection style, overall shape, number of ports, and the part being cut out. Plumbing parts are usually identified by dimensions and connections rather than by spa model name alone.
These parts are supplied through the Artesian Spas OEM parts network for Tropic Seas Spas whenever available. Some components may be updated factory replacements for earlier production parts.
Pump union leaks are commonly caused by a flattened O-ring, loose union nut, cracked tailpiece, misalignment, or freeze damage. Inspect all union components before replacing only one piece.
If the O-ring is flattened, cracked, swollen, or leaking, replace it while the plumbing is apart. A new O-ring is cheap insurance against another leak.
Hot tub plumbing fittings are glued together permanently. During a leak or freeze-damage repair, you often have to cut back to clean pipe before rebuilding the plumbing. That may require couplers, elbows, tees, flex hose, unions, valves, or additional manifolds.
Usually not. Once a glued PVC fitting has been cut out of the spa plumbing, it generally cannot be reused. Most repairs require new fittings and fresh PVC primer and cement.
Yes. Freeze damage often cracks multiple fittings in the same plumbing area. Inspect nearby manifolds, tees, elbows, unions, valves, jet lines, pump connections, drains, and suction fittings before completing the repair.
Yes. Send clear photos of the damaged part, nearby plumbing, and your spa serial number using the fitment verification form on this page. We can help confirm the best replacement before you order whenever possible.
Plumbing Size
2-1/2"
Plumbing Part Type
Union / Pump Fitting
Factory Reference
21-0087-48
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