"BIOLAB" POOL SALT PLUS BOOSTAqua Chem also offers superior products for salt pools. Pool Salt PLUS is a 2-step system that can transform a salt-water pool into a luxurious and shimmering mineral system.Pool Salt PLUS products are different from "plain" salt because they contain additional ingredients that provide a gentle feel to the water, maintain proper pH and add a patented scale inhibitor to help prolong the life of your cell.Pool Salt PLUS Boost-the first step towards establishing a mineral system in your pool. Then follow up with Pool Salt PLUS Refresh to maintain soft, gentle feel to the pool water that sparkles.Highlights:-Helps maintain a soft, gentle feel to the pool water. Converts into chlorine with salt system cell. Helps maintain ph. Controls scale to prolong cell life. Contains water clarifier. Maintains soft feel to water. Pool salt plus boost. Size : 1 qts