EWG Guide to Healthy Cleaning: Grade B
Drainbo Natural Drain Cleaner, 64 oz
$27.49price as of Nov 1
The only formally EWG-graded pick in this roundup. Grade B from EWG's Guide to Healthy Cleaning, a significant step up from Drano's F. Natural bacteria and enzyme formula; no lye, no caustic acids, no synthetic fragrance. Approx. 8 to 10 drain treatments per 64 oz bottle.
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EWG rating reflects EWG’s independent assessment. Nontoxic Finder is not affiliated with or endorsed by the Environmental Working Group.