Roebic Laboratories K-67 Granular Concentrate Drain and Trap Cleaner, 16-Ounce Bag

For just pennies a month, K-67 Bacterial Drain & Trap Cleaner eliminates slow and sluggish drains in your home by removing layers of build up in the trap and along the entire length of the pipe. Biodegradable, non-corrosive and ideal for plastic pipes.