I bought my over 70 years old house 5 and 1/2 years ago. I have tried everything to remove the stains on the porcelain in the sinks, tub, shower, and toilets. Over the years I'd guess that I've spent a couple of hundred on different products. I bought this Restore 4 stuff last week, in my quest. I sprayed it on, let it sit for a couple of minutes, and wiped the stuff off. It came up very easily and I have no more stains. It also makes the chrome on handles and valves sparkle. This stuff is fabulous!
Bottom Line: Yes, I would recommend this to a friend
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