Amazon has the Drano Max Gel Drain Clog Remover and Cleaner – 80 oz. on sale for $6.43 with free shipping for Amazon Prime or orders over $25.
Product Features:
- Formulated thick to dissolve the tough clogs fast.
- Safe on PVC, metal pipes, garbage disposals and septic systems.
- Removes and cleans clogs in all bathtubs, showers, and sinks.