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⚡ Transform surfaces with pro-grade power — don’t let stains hold you back!
Black Swan Mfg. Co. 20° Muriatic Acid is a potent 28% hydrochloric acid solution designed for heavy-duty cleaning and surface preparation. It etches concrete and masonry for superior paint adhesion, removes rust and hard water stains from toilets and metal, and can adjust pool pH. Trusted by professionals and homeowners alike, this 32 fl oz bottle delivers industrial strength cleaning with proven effectiveness.





| ASIN | B008LV2GNO |
| Best Sellers Rank | #92,891 in Health ( See Top 100 in Health ) #657 in Household Floor Cleaning Products |
| Brand | Black Swan |
| Brand Name | Black Swan |
| Container Type | Bottle |
| Contains Liquid Contents? | No |
| Customer Reviews | 4.6 out of 5 stars 241 Reviews |
| Item Form | Liquid |
| Item Volume | 32 Fluid Ounces |
| Item Weight | 0.01 Ounces |
| Item form | Liquid |
| Item volume | 32 Fluid Ounces |
| Manufacturer | Black Swan Mfg. Co. |
| Model Number | 09017 |
| Number of Items | 1 |
| Part Number | 139201776 |
| Specific Uses For Product | Toilet |
| Specific uses for product | Toilet |
| Surface Recommendation | toilet |
| Surface recommendation | toilet |
| UPC | 054647090177 |
D**E
Removes hard water stains on black stone sink.
This is the second time I have bought this. The only thing I have found that gets rid of hard water stains on my black quartz sink.
D**R
This stuff works!
Had an old toilet that had a thick Calcium build up on the bottom of the bowl. This stuff removed it and made it look new again. A definite thumbs from me 👍
C**S
Will definitely buy again this was perfect
Very professional packaging and handling this product was not just slapped in the box, it was takin care of properly, i strongly advise gloves and a gas mask when using, very very strong toxic vapors come off this product. This product should not be takin lightly and if you get this on your skin it will cause seriously dangerous chemical burns if you get any in your eyes you will go blind, STRONGLY RECOMMEND PROPER HANDLING EDUCATION AND PROPER DISPOSAL ALSO PPE and definitely educate yourself on these strong acids and basics before you just buy one and get to splashin around this very powerful CONCENTRATED solution. WITH ALL THAT SAID THE PRODUCT IS GREAT.
M**A
De cudado
Este producto limpia superficies muy sucias, bueno en si, pero de muchísimo cuidado , hay que usarlo con guantes mascarilla y gafas protectoras ,no dejarlo mucho tiempo porque quema la superficie,en conclusión altamente peligroso
A**E
Harsh chemical but works
Cleans stubborn toilet bowl stains
Trustpilot
1 day ago
3 weeks ago