HTH® Pool Care Shock Advanced 6 pack x 1 lb. Size:6 pack x 1 lb. Perma-SHIELD resists heat build-up by

Perma-SHIELD resists heat build-up by protecting the blade against gumming & corrosion

while built-to-last couplings can withstand being run over by heavy equipment up to 4

disinfects

but also differentiates 10-49V from the standard voltage range of 50 to 1000 V

HTH® Pool Care Shock Advanced 6 pack x 1 lb. Size:6 pack x 1 lb. Perma-SHIELD resists heat build-up byStay all clear for cannonballs! This fast dissolving, convenient 4 in 1 formula kills bacteria and algae, reduces chlorine odor and irritation and quickly restores crystal clarity. Multi functional shock treatment for weekly use Use weekly to solve 90% of pool water problems Restores crystal clarity in 24 hours Visibly brilliant sparkle This Cal Hypo based formula sanitizes without adding cyanuric acid (CYA) to prevent overstabilization or chlorine