The Missing Piece: A Guide to Hot Tub Aromatherapy Canisters and Infusers

If you own a premium spa from a brand like Strong Spas, Cal Spas, or Jacuzzi, you’ve likely noticed a small, specialized compartment near your air dials: the built-in aromatherapy canister. These integrated infusers, like the ones found in the Strong Spas Premium Series or Hot Spring Spas, are designed to scent your water using the tub’s air induction system.

The problem? Finding the proprietary “bead” cartridges or “scent pods” for these canister ports is notoriously difficult. Whether they are out of stock, discontinued, or only available in a few basic scents, many spa owners find this high-end feature sitting empty and unused.

Why Your Hot Tub Aromatherapy Refills Are Impossible to Find

Manufacturers often use proprietary shapes for their infusers to keep owners buying their specific brand of cartridges. As models evolve—like the newer Strong Spas or Master Spas lines—the older cartridge styles are often phased out, leaving owners with no way to enjoy their aromatherapy system.

How to Revive Your Spa’s Infusion System

The good news is that you don’t need a specific plastic pod to get your spa smelling like a luxury retreat. Most built-in canisters work by pulling air through the chamber. To bypass the “discontinued cartridge” trap, many owners of Cal Spas or Sundance Spas have moved toward high-quality, water-soluble mineral salts.

The Pro Secret: Use a small, fine-mesh canister like the ones sold through aromahoes to hold a handful of mineral crystals. Place the canister inside your Strong Spas or Jacuzzi port. This allows the air jets to pass through the salts, picking up the fragrance and minerals without the need for a proprietary plastic shell.

Why Mineral Salts are the Better Alternative

Unlike the liquid “scents” found in many big-box cartridges, a blend of Himalayan and Epsom salts offers physical benefits that plastic pods can’t match:

• No Plumbing Risk: High-quality salts are fully water-soluble and won’t clog the intricate air lines in your Master Spas or Bullfrog Spas.
• Zero Scum Line: Unlike oil-based “scent beads,” minerals don’t leave a greasy residue on your acrylic or filters.
• Custom Intensity: You control how much scent goes in, rather than being stuck with a pre-set cartridge strength.

Don’t Let Your Infuser Sit Empty

Whether you’re rocking a Strong Spa with a built-in injector or a Cal Spa air-induction system, your aromatherapy feature is one of the best ways to enhance your soak. By switching to a mineral-based medium, you get a cleaner, more effective recovery ritual that doesn’t depend on a discontinued part number.