Green Gobbler Drain Opener Pacs for Drain and Toilet Clogs, 3 Pac with free hair grabber tool Safe on all copper, PVC plastic and cast iron pipes Fast & powerful, safe for septic tanks Use in sinks, tubs, toilets, septic tanks, grease traps, lift stations etc Liquefies grease, hair, soap scum, toilet paper, feminine, sludge, cigarette butts and more Tested and approved by SGS Laboratories, one of the largest 3rd party testing agencies in the world