Discontinued Balboa Circulation Pump for Tropic Seas Spas
This historical Balboa circulation pump is no longer available. It is listed so owners and service technicians searching the original numbers can identify the pump and move directly to a current replacement.
| Brand/source | Part number | Status |
|---|---|---|
| Balboa | 1070021 | Discontinued |
| Artesian Spas | 21-0120-81 | Discontinued |
| Tropic Seas listing SKU | TS-21-0120-81 | Historical reference |
Choose a current replacement
The best replacement depends on the available space behind the motor:
- Current OEM factory replacement: best default choice when space allows.
- Compact tight-fit replacement: preferred when the full-size OEM pump sits too close to a jet-pump motor.
- Smallest compact option: maximum clearance for especially tight layouts.
- Gecko Circ-Master: premium option with a 2-year warranty when adequate room is available.
Do not order by plumbing size alone. Compare voltage, intake/discharge orientation, cord or connector, and the physical clearance around the motor.
Which Tropic Seas circulation pump should I choose?
| Option | Best use | Warranty |
|---|---|---|
| Current OEM factory replacement | Factory-recommended replacement for most Tropic Seas Spas | 1 year |
| Compact replacement | Tight equipment bays or spas that originally used a smaller pump | 1 year |
| Smallest OEM compact option | Maximum clearance and direct replacement of the small Laing/Goulds-style pump | 1 year |
| Gecko Circ-Master | Premium, long-proven design when the equipment bay has adequate room | 2 years |
Current page: Historical Balboa pump — replacement required
Tropic Seas Spas Circulation Pump FAQs
Yes. Balboa 1070021 was used by Artesian under part number 21-0120-81 and appeared in some Tropic Seas Spas.
No. This pump is discontinued and this listing is maintained for identification, cross-reference, and replacement guidance.
The current OEM pump is the default recommendation when space allows. Choose a compact option if the rear motor clearance is tight, or the Gecko Circ-Master when you want the premium 2-year-warranty option and have adequate room.
A longer replacement motor can sit against the rear motor bell of a neighboring jet pump in some Tropic Seas equipment bays. Compact pumps reduce that interference risk.
The current OEM and compact options include a 1-year warranty. The Gecko Circ-Master includes a 2-year warranty.
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