On Amazon.com where you can now get this
Liquid-Plumr Hair Clog Eliminator Liquid Drain Cleaner for just $3.84 after you clip the $1.34 digital coupon!

This drain cleaner is specially formulated for hair clogs and is guaranteed to clear the toughest hair clog or you can get your money back! It’s safe for all septic systems and pipes including PVC, plastic, metal, and old pipes!