Cartridge Holder for the new Frog@Ease Cartridge Sanitizing System.

This is the Cartridge Holder only, FROG@ease - Sanitizing System Starter Kit sold separately.

Replace the SmartChlor® cartridge every 3-4 weeks. The box includes three (3) SmartChlor® cartridges.

Requires FROG @ease cartridge holder and sanitizing system starter kit sold separately.

Use this when filling your spa with fresh water. The box includes a 4-month supply of @ease test strips, one (1) FROG® jump start packet, one (1) SmartChlor® cartridge, and one (1) FROG® mineral cartridge.

Requires cartridge holder sold separately.