Bio-Clean Hard Water Stain Remover

$15.70 to $24.50

In Stock

Multiple Options


We get amazing response to this customer-favorite product!

Use what the professionals use, and get the powerful industrial strength that is safe for you and all your surfaces!

Bio-Clean Hard Water Stain Remover removes water and mineral stains, tree sap, paint over-spray, soap scum, and mildew from glass.

Easy to use! Simply apply paste onto the surface or onto a cloth or sponge. Press firmly, loosening stain with a massaging action. Then rinse with water.

Bio-Clean Hard Water Stain Remover is safe for hands and glass as well as safe to use around plants and animals. GLOVES ARE NOT NEEDED. Bio-Clean Hard Water Stain Remover also seals nearly any surface to prevent additional water stains. It works great on glass, auto windshields, paint, tile, porcelain, metal, and more.

Bio-Clean Hard Water Stain Remover is a LIGHT DUTY stain remover, effective and safe to use. If you don't see results, try moving to a MEDIUM DUTY stain remover.

WINTER WARNING: Detroit Sponge and our carriers (UPS or FedEx) are NOT responsible for liquids freezing in transit. Please keep this in mind when ordering liquids during the winter months, particularly in January.

Ratings & Reviews

10 reviews

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6/13/2011 8:00:00 pm

Recommended product A+++++

by Bill

Hey... not only works on glass, is excellent restoring ceramics, stainless steel, marble and any surface you may have with stains or spots. Recommended product A+++++

8/4/2015 12:00:00 pm

best and safe to use

by Blake

By far the best and safe to use hard water cleaner out

8/14/2008 12:00:00 pm

best water spot remover

by Anonymous

best water spot remover and hard water stain remover i've ever used!!

3/4/2019 9:47 am

little goes a long way

by Sharen

wndwgrl-this is by far the best water spot remover on the market, a little goes a long way

8/30/2005 12:21:00 pm

have used for years

by Michelle

Great product, have used it for many years, cleaning years of soap scum from rental properties

8/30/2005 12:21:00 pm

worked with little effort

by Tim

used this product to remove hardwater stains from a old office building as well as the metal frames.the product worked wonderful and with little effort.

10/6/2005 4:00:00 pm

Highly Recommended

by Dan

We have the worst calcium in our water here and this is the only product that will eat away at that beefy stuff! Highly Recommended

12/20/2005 8:00:00 am

Nothing comes close!!

by John

Nothing comes close!!

7/15/2006 8:30:00 am

looked like a brand new window

by Tom

This stuff really works!! I showed my friends how it took off the water spots off the car windows and they were amazed, and said it looked like a brand new window.

1/6/2023 1:11 pm


by Donderson -

Great product & fast shipping.