Best Flow Switch Replacements for Sundance and Jacuzzi Hot Tubs
Flow switches are critical for spa circulation and pump protection. This guide highlights five compatible flow switch replacements for Sundance, Jacuzzi, and related Sweetwater brands, focusing on part numbers like 2560-040 and 6560-860. Each option is evaluated on compatibility, build quality, and ease of installation to help you choose a reliable upgrade for maintenance or repair success.
| Product | Brand | Compatibility Snapshot |
|---|---|---|
| Flow Switch for Sundance Spa and Jacuzzi Hot Tub, 6560-860 | EXCELFU | 1999+ Sundance 800/850/880; 2001+ Capri; Sweetwater/Portifino with J-300 LCD |
| XMK Flow Switch Replacement for Q-12DS-C2 | XMK | Sweetwater, Jacuzzi, Sundance; many 2000s Sundance models listed in description |
| Flow Switch Replacement for Q-12DS-C2 (Malictele) | Malictele | Similar ranges to Sundance/Sweetwater/Jacuzzi models; broad compatibility |
| sixcow 2560-040 Flow Switch for Sundance, Jacuzzi, Sweetwater | sixcow | Compatible with Sundance 680/780/980/880 series and assorted Sweetwater/Jacuzzi models |
| sixcow 6560-860 Flow Switch for Sundance Spas | sixcow | All 1999–present Sundance 800/850/880, Capri, Sweetwater/Portifino; LED equivalents noted |
Flow Switch for Sundance Spa and Jacuzzi Hot Tub, 6560-860

Compatibility: Replaces part number 6560-860 and works with Sundance 1999+ 2-pump or 3-pump systems, 2001+ Capri, and 1999+ Sweetwater/Portifino with J-300 LCD. For 2002+ LED J-300, see 2560-040. Features a transparent housing tee with 3/4 inch main port and 3/8 inch side port. This unit helps address FLO or FLO2 error indicators and supports straightforward installation in typical spa plumbing layouts.
XMK Flow Switch Replacement for Q-12DS-C2

Compatibility: Replaces part #2560-040, Q12DS-C2. Designed for Sundance, Sweetwater, Jacuzzi, and Jacuzzi/J-500/J-400/LED series models across multiple generations. Includes listings for 680, 780, 880, and 980 series, Select Series, Montclair, Camden, and more. The flow switch comes with a transparent tee and dual barb connections to enable easy inspection and secure fitment, reducing risk of debris-induced flow faults.
Malictele Flow Switch for Sundance & Jacuzzi Spa

Compatibility: Replacement for 6560-860/6560-858 units; supports Sundance 800/850/880 series and Capri, 1999 onward with circulation pumps, plus Sweetwater/Portofino series. The kit includes a transparent tee, 3/4 inch main port and 3/8 inch side port, plus durable wiring and high-visibility housing. The design aims to prevent FLO/FLO2 errors and prolong pump and filter life in humid spa environments.
Sundance Spas Flow Switch 6560-860 with Bypass

Compatibility: Original Sundance part 6560-860 featuring a flow switch with transparent tee and 3/4 inch/3/8 inch barb configuration. Marketed for Sundance Spas and related models; includes bypass functionality typical of older setups. Designed to be a direct-fit replacement to fix common flow-sensor related error messages and restore reliable circulation in 1999+ spas.
Buying Guide: Flow Switch Considerations
- Compatibility scope: Confirm your spa model year, series (680/780/880/980, Select, Capri), and whether your unit uses a circulation pump. Check both the main and side port fittings (3/4″ and 3/8″) to ensure a snug fit.
- Electrical and material quality: Look for durable housing, corrosion-resistant connectors, and high-quality sensing components to withstand heat and humidity inside spas.
- Inspection-friendly design: A transparent or clear tee helps you visually inspect debris before installation and during maintenance.
- Error resolution: Choose a model explicitly marketed to address common FLO or FLO2 errors and to replace worn or clogged flow sensors that trigger control panel alerts.
- Installation notes: Some variants differentiate between LED and non-LED J-300 series compatibility. If you have a 2002+ LED J-300, verify the correct part (2560-040) to avoid fitment issues.
- Availability and support: Consider brands with broad model coverage (Sundance, Sweetwater, Jacuzzi, Capri) and clear compatibility lists to minimize mismatch risks.