The Spa Frog @ease SmartChlor J300 3‑Pack (6473‑295#) provides three months of dependable, low‑maintenance sanitation for Jacuzzi® J300 spas. Each SmartChlor cartridge uses SmartChlor® Technology, a self‑regulating chlorine system that maintains steady sanitizer levels without daily dosing or harsh chemical spikes.

SmartChlor releases chlorine only when needed, keeping water clear, clean, and silky. When a cartridge is depleted, the system flips over—giving you an instant visual cue that it’s time for a replacement. This 3‑pack ensures you always have a fresh cartridge ready to drop in.

Perfect for J300 spa owners who want reliable, easy water care.