Home / Chemicals / Pool / Chlorine/Bromine / Box of 4 gallons of Liquid Shock “Sirona Chlorine/Bromine Spa Test Strips – 25 Count” has been added to your cart. View cart $38.99 Box of 4 gallons of Liquid Shock quantity Add to cart SKU: LIQCS Categories: Chemicals, Chlorine/Bromine, Pool, Shocks/Oxidizers Product ID: 2223 Description Description 12.5% Sodium Hypochlorite. Weekly: 1 gallon/10,000 gallons of water/ Opening if clear: 3 gallons/10,000 gallons of water. Related products Sale! 4.5lb NST Prime (Non Stabilized Tablet) $37.99 Original price was: $37.99.$34.99Current price is: $34.99. Add to cart 7.5lb Alkalinity Up $32.99 Read more 1lb Bag of Non-Chlorine Oxidizer $12.99 Add to cart Pool Magic + Phos Free $35.99 Add to cart