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Additional Cassettes So You Don't Run Out
SENSE S2 Cassette Combo Pack
Includes 1 C5 and 2 C2 Cassettes
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First Choice Cal-Shock - Calcium Hypochlorite, 5 lb Pail

First Choice Cal-Shock - Calcium Hypochlorite, 5 lb Pail
First Choice Cal-Shock - Calcium Hypochlorite, 5 lb Pail

First Choice Cal-Shock - Calcium Hypochlorite, 5 lb Pail

Excellent formulation for super-chlorination shock treatments. Quick dissolving, 68% Calcium Hypochlorite kills algae, bacteria and destroys organic contaminants.


Note: For every 10 ppm Free Chlorine (FC) added by this Cal-Hypo product, it also increases Calcium Hardness (CH) by 8 ppm. 

We support local suppliers and having a minimal carbon footprint so the brand you receive may vary.
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