SENSE S2 now 10% OFF
SENSE for Pools Sense for Hot Tubs Chemicals & Supplies
Your Cart
Additional Cassettes So You Don't Run Out
WaterGuru Cassette C2/C5 Combo - 3 Pack
Includes 1 C5 and 2 C2 Cassettes
edit, pause, cancel anytime.
$69
Subtotal

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.
1
$21.60
We have ramped up production and our C5 Cassettes are back in stock