Pride Plumbing was called out for a Kohler toilet tank that would run constantly and not fill. We replaced the toilet tank's water fill valve with a new Fluidmaster PRO45B fill valve; its flapper with a new Atlantic Coast 33-5376 flapper; and its above floor braided stainless steel water supply line with a new Mainline MLB19DLMF model and tested for leaks and proper operation with no issues.