Variable Speed 73533-AA KOHLER Whirlpool System

Upgrade your soak with the Variable Speed 73533-AA KOHLER Whirlpool Pump System—a modern replacement designed to restore and elevate your whirlpool experience. Built to fit a wide range of existing tub setups, this compact, reliable system combines precise speed control with versatile massage modes for a truly personalized hydrotherapy session.

Key benefits that set this system apart

• Precise, adjustable flow with a 120V, 8.5 A variable-speed pump that lets you tailor intensity from a gentle soak to a deep massage.
• Integrated control you can trust — CG AIR SYSTEMS Control Box 115 pairs with a dedicated variable-speed keypad for effortless, one-touch operation.
• The right fit for your tub — White 2.5" square keypad thst fits in a 1 inch hole on tub.
• Versatile massage at your fingertips — Choose High, Medium, or Low speeds, plus Wave and Pulse modes to match mood and needs.
• Hassle-free upgrade — Designed to slip into your existing plumbing connections with minimal remodeling and included free union for easy piping.
• Compact, discreet control — The control box tucks under most tub configurations, keeping installation neat and space-efficient.
• Safety-driven installation — Requires a dedicated GFCI-protected circuit to ensure safe operation around wet environments.
• Vibration-conscious design — A stable base minimizes vibration; note that the old pump base will not fit the new model.

What’s included

• 1 – 120V, 8.5 amp variable-speed pump that fits your existing plumbing connections
• 1 – CG AIR SYSTEMS Control Box 115 Variable-Speed
• 1 – Variable-Speed Keypad in White (2.5" square footprint; fits inside small 1 inch hole and Trim covers orginal hole)

Compatibility and installation considerations

Voltage note: This system is designed for 120V. If your tub is wired for 240V, a conversion to 120V is required before installation. In most cases, no plumbing changes are needed and the pump will fit your current setup. A free union is included to simplify piping connections. For safety, connect to a dedicated GFCI-protected circuit, especially in wet environments. The control box is purposefully compact to tuck away under the tub, keeping the look clean and unobtrusive.

Who this is for and how it helps

Ideal for hot tub and whirlpool owners seeking a reliable, adjustable massage experience without the headaches of outdated components. The Variable Speed 73533-AA KOHLER Whirlpool Pump System delivers consistent performance and intuitive control, turning a standard soak into a customizable spa session. Whether you want a steady, soothing flow after a long day or a dynamic, pulsing massage to work out tension, this upgrade provides the exact speed, pattern, and feel you crave.

Why choose this replacement system

Replacing an aging pump with this modern setup yields more predictable performance and a homeowner-friendly installation. The dedicated control box and keypad simplify operation, while the 120V design aligns with common home wiring, avoiding the need for extensive electrical work. With Wave and Pulse modes and three distinct speeds, you can dial in the massage experience that suits you best—consistently, session after session.

Practical tips for best results

• Ensure your tub is connected to a dedicated GFCI outlet to maximize safety around water.
• Place the control box on a stable surface or dedicated base to minimize vibration during operation.
• Verify your cutout size (1-7/8" round) to confirm keypad compatibility before installation.
• Follow the included union for straightforward piping; no extensive modifications are typically required.