INFLTBLE SALLY W/TRT SCK (Pack of 1)

Model NO : 8029133 UPC : 785336712147 Brand Name : GLB Country Of Origin : US The calcium hardness level should be 150 - 250 ppm One pound of GLB Calcium Hardness Up will increase the calcium hardness 10 ppm in 10,000 gallons of water Compatible with chlorine, bromine, mineral purification systems, salt water chlorine and ozone sanitizing systemsYou may also like GLB Strike-Out Swimming Pool Alagecide 1 Quart 12 Pack.