ZAP IT 25LB GRANULAR CHLORINE 73% CAL-HYPO 4pk General guideline: Replace every 3–5

General guideline: Replace every 3–5 years for best performance

Material: Thick

SpaGuard Chlorinating Concentrate 2lb 42614BIO

other solutions are standard-capped for convenience

Cuts chlorine buys and dosing frequency for budget-friendly upkeep

ZAP IT 25LB GRANULAR CHLORINE 73% CAL-HYPO 4pk General guideline: Replace every 3–5Zappit 73% Granular Chlorine 25 lb (Cal Hypo Pool Shock) Commercial strength pool shock for powerful sanitation and crystal clear water. Zappit 73% Granular Chlorine is a high performance calcium hypochlorite (cal hypo) shock designed to quickly kill bacteria, control algae, and eliminate contaminants. With 73% available chlorine, this bulk 25 lb bucket is ideal for pool owners who want reliable, cost effective water treatment all season long. Why