JACK'S MAGIC 1 gal Bottle Power Blue™ Scale Off™ cold Use as often as necessary

Use as often as necessary

Soft cushion-ribbed headband for cool comfort all day long

The 3M™ SecureFit™ H-Series Hard Hats with Pressure Diffusion Technology are designed to self-adjust to the wearer as the ratchet is tightened

Chlorine (high range)

accurate readings for bromine or chlorine

JACK'S MAGIC 1 gal Bottle Power Blue™ Scale Off™ cold Use as often as necessaryJacks Magic Power Blue JMPBSCALEOFF128 1 gal Bottle Scale Off 4 per case. Power Blue Scale Off is a revolutionary product to remove calcium carbonate scale and efflorescence. It is designed specifically to solve one of the worst swimming pool area maintenance problems.