Description
Upgrade your spa experience with the Aquatic / Lasco TMS3 Variable Speed Control, Topside Panel. Designed to replace traditional air jet whirlpool controllers, this DVSC (Digital Variable Speed Control) solution delivers precise, reliable control for your air blower or Gemini Plus II variable-speed pump, unlocking luxurious comfort with effortless operation.
Key benefits
- Precise, flexible control — manage air flow and pump speed with a dedicated topside panel, giving you smooth, repeatable performance tailored to your hot tub routine.
- Versatile compatibility — compatible with 120V air blowers and the Gemini Plus II TMS Control Box (TMSV-120/60-020-N-PR), making it a future-ready replacement for older whirlpool controllers.
- Built for convenience — compact 5" x 4-1/2" x 2" footprint fits tight panels and tight spa alcoves, with a 12 AMP rating that handles typical spa load without overkill.
- Comprehensive cabling — includes a 2' NEMA plug cord, a 2' female NEMA receptacle cord, and an 8' topside cord for flexible installation and clean routing.
- Intuitive topside control — a 1-7/8" diameter button and a 1" mounting hole create a tactile, easy-to-use interface for guests and spa owners alike.
- Smart purge feature — the 20-minute purge activates after you turn the system OFF, running for 1 minute to push out residual water from pipes, helping prevent corrosion and prolonging component life.
What problems does it solve?
Older air jet controllers can be finicky, require constant adjustment, or fail to deliver consistent performance. The Aquatic / Lasco TMS3 consolidates speed control, timing, and convenience into one robust package. It simplifies maintenance by integrating a built-in purge cycle that reduces water stagnation and mineral buildup, while the durable 12 AMP design ensures reliable operation under typical spa usage patterns.
Who should consider it?
- Spa owners upgrading from standard air jet controllers who want precise, customizable airflow and pump speed control.
- Owners of spas using Gemini Plus II variable-speed pumps seeking seamless integration with a Topside panel for effortless adjustments from poolside.
- Installers looking for a compact, reliable control solution with complete cabling and straightforward mounting.
How it compares to alternatives
Unlike generic mechanical controllers, the TMS3 combines digital speed control with a dedicated purge sequence and a clean, user-friendly topside interface. It supports both fixed-air and variable-speed pump configurations, reducing the need for multiple adapters or retrofit kits. Its 20-minute automatic purge adds a practical maintenance advantage that helps keep your plumbing clear of water and mineral buildup between uses.
Technical specifications at a glance
- Size: 5" x 4-1/2" x 2"
- Electrical: 12 AMPS
- Purge system: 20 minutes after OFF; runs for 1 minute to clear pipes
- Topside button diameter: 1-7/8"
- Topside mounting hole: 1"
- Includes: 2' NEMA plug cord, 2' female NEMA receptacle cord, 8' topside cord
- Compatibility: Air Blower 120V and Gemini Plus II TMS Control Box (TMSV-120/60-020-N-PR)
How to get the most out of it
- Install with the topside panel within easy reach of the spa seating area for quick comfort adjustments.
- Use the purge feature after guests finish a soak to help dry pipes and reduce mineral deposits.
- Pair with Gemini Plus II for advanced speed control profiles—adjusters can be saved as presets for different hydrotherapy experiences.
Transform your spa experience with the Aquatic / Lasco TMS3 Variable Speed Control, Topside Panel—a purposeful upgrade that blends reliability, ease of use, and thoughtful maintenance features into one compact, purpose-built solution.