One tablet, once a month, per appliance. That's all it takes to keep your washer, dishwasher, or ice maker performing like new. Each pack is a full 12-month supply.

Yes. Our formulas are septic-safe and fully compatible with high-efficiency (HE) front-load and top-load machines. We use biodegradable surfactants and food-grade descalers.

They remove. Our tablets dissolve into an active solution that breaks down mineral deposits, soap scum, and the bacteria that cause odors — at the source. No fragrance cover-up, no surface-only shine.

Free US shipping on orders over $35. Most orders ship within 1 business day and arrive in 3-5 business days with tracking.

We offer a 30-day money-back guarantee. If you're not satisfied for any reason, email support@grimelabs.com within 30 days and we'll refund you in full — no questions, no return needed.

You can find verified reviews from 3,500+ customers on our Amazon storefront. Our Washing Machine Cleaner is currently Amazon's Choice with 2,100+ reviews and a 4.5/5 rating.

Yes. Each product page lists active ingredients. Our tablets are formulated with sodium percarbonate (active oxygen), food-grade citric acid (descaling), and biodegradable surfactants. No chlorine bleach, no phosphates, no harsh fumes.