Boardwalk ABCBX In-Tank Automatic Bowl Cleaner, Unscented, 9 oz, 12/Box - Box of 12 BWKABCBX($72.77Value)
In-tank cleaner cleans and deodorizes. Prevents scale and mildew buildup. Colors water blue with each flush. Has 22% surfactant formulation. Lasts up to 30 days.