Check the listing for details. Rustoleum Roto-Rooter Build-Up Remover 351271 64oz Drain Cleaner. Condition: New. Listed at 20.00 USD. Rustoleum Roto-Rooter Build-Up Remover 351271 64oz Drain Cleaner Description ABOUT BUILD-UP REMOVER Roto-Rooter Build Up Remover prevents grease build up that can cause slow running drains. Our grease fighting, natural enzyme formula was designed to coat pipe walls and eliminate build up before a standing water clog forms. This product removes unpleasant odors, leaves a fresh citrus scent and is great to prevent septic system backups. Use monthly to prevent clogs from forming. Safe on all pipes and septic systems Works immediately to eliminate build up before a clog forms! Grease fighting formula Natural enzymes Prevents slow running drains Ideal for use on kitchen sinks, tubs, showers, bathroom sinks, toilets EMPTY HEADING AVAILABLE SIZES 64 oz.