South Seas Spas Valves and Diverters
A valve that’s stiff, leaking at the stem, or spinning freely has worn internals — most replace as complete units. Match by function, size, and cap style.
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✅ 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
- Your spa serial number sticker
- The equipment area or installation location (if accessible)
EZ Hot Tub Parts can help confirm fitment before you order and help reduce costly returns.
Confirm Your South Seas Spas Model
519P | 532L | 533DL | 627M | 729B | 729L | 737BE | 737LE | 743D | 748B | 748L | 840BE | 840LE | 850B | 850L | 853DL | 860B | 860L | 965L
What size diverter valves do South Seas Spas use?
South Seas Spas use 2-inch and 2.5-inch diverter valves depending on plumbing configuration. Check the existing valve for size markings or measure the port diameter before ordering a replacement.
How do I replace a diverter valve on my South Seas spa?
Turn off the spa and drain below the valve. Most South Seas valve replacements are slip-fit or union-fit and do not require gluing. Use the fitment form above to confirm the right valve for your specific model.