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- Filter core cartridge version of the Spa Frog sanitizer system.
- Uses colloidal silver and Zinc to kill bacteria, viruses, fungae, mold, mildew, algea.
- Has spacer stick attached which can be shortened for all applications
- 4 month lifespan, has black knob 'age' reminder on top of tube.
- LONG length = 11-1/2, SHORT length = 6-3/4" - just snap off at desired length!
- CHECK OUT: Frog's new use APP: https://www.frogproducts.com/about-us/frog-mobile-app/