Black Swan's Zap Drain Pipe Opener is a heavy-duty, sulfuric acid drain opener formulated specifically for emergency use.

ZAP quickly clears clogged drains and waste lines: thaws frozen lines. Disintegrates paper, rags, sanitary napkins, lime and scale deposits, food scraps and other organic matter. Melts grease quickly.

ZAP is manufactured with concentrated virgin sulfuric acid.

ZAP contains protective, corrosion inhibitors and quick penetrating activating agents. They inhibit corrosive action, and their proven protective superiority has been attested to by an independent laboratory.

ZAP will not harm septic tanks, cesspools, drainage fields and leaching systems when properly used according to directions.

ZAP saves time and effort - and simplifies tough jobs. Emergency stoppages can be promptly eliminated in the shortest time - cleanly - without the use of mechanical equipment.