Nayoku Mineral Cartridge Replacement for Frog @Ease In-Line System – 2 Pack (Up to 600 Gallons, CYA Free)

Introducing the Nayoku Mineral Cartridge Replacement, a compatible solution for the FROG @Ease in-Line SmartChlor Mineral Cartridge System. This 2-pack is designed for use with Marquis, Caldera, Artesian, and Hot Springs spas and is marketed as CYA-free. Note that this is a generic replacement, not an OEM product.

When paired with a compatible in-line setup, the mineral cartridge aims to condition water for a softer feel and to help maintain balanced pH over time. Many spa owners notice water that feels silkier and tends to emit a cleaner, more inviting scent after regular maintenance cycles. While results can vary by tub size and usage, this replacement is positioned as a convenient option for ongoing spa care.

Key compatibility and what you get

• ✅ Compatibility with the FROG @Ease in-Line system; designed for use with select spa models up to 600 gallons, including Artesian Elite and Island, Marquis Crown, Caldera Vacanza, and Hot Spring Hot Spot (model-specific variations may apply).
• ✅ Value pack includes 2 mineral cartridges, each intended to support roughly four months of use depending on spa size and frequency of use.

How Nayoku supports your spa routine

• ✅ Water conditioning potential: minerals work with SmartChlor (sold separately) to help soften water and maintain balanced pH, contributing to a more comfortable soak.
• ✅ Convenience: a straightforward replacement option that fits in-line systems designed for up to 600 gallons.

Packaging and product notes: this is a generic replacement item, not an OEM product. If you’re ever not satisfied, our team is ready to help via email to find a satisfactory solution. By choosing Nayoku, you’re selecting a practical, watchful approach to spa maintenance that prioritizes user needs and ongoing care.