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Amazon.com: ComStar Pure Lye | 99% Pure Sodium Hydroxide Beads | Eco-Friendly, Industrial Strength, Biodegradable Drain Opener | Safe on Fixtures | Static-Free, Unique Beads for Soap Making | 1 lb. (30-500) : Health & Household
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Roebic Laboratories, Inc. 2 lb. Heavy Duty Crystal Drain Opener 32-oz Drain Cleaner Crystals in the Drain Cleaners department at Lowes.com
![Amazon.com: ComStar Pure Lye | 99% Pure Sodium Hydroxide Beads | Eco-Friendly, Industrial Strength, Biodegradable Drain Opener | Safe on Fixtures | Static-Free, Unique Beads for Soap Making | 1 lb. (30-500) : Health & Household Amazon.com: ComStar Pure Lye | 99% Pure Sodium Hydroxide Beads | Eco-Friendly, Industrial Strength, Biodegradable Drain Opener | Safe on Fixtures | Static-Free, Unique Beads for Soap Making | 1 lb. (30-500) : Health & Household](https://m.media-amazon.com/images/I/61p8cLDIkNL.jpg)