Extra Strength Stain Free

Quickly Removes Stubborn Metal Stains

Stainfree Extra Strength is a premium stain fighter that contains 100% ascorbic acid. It quickly removes metal staining without adding phosphates to your water. It is ideal for treating staining on all pool surfaces. Use with Natural Chemistry’s Metalfree™ and you have the ultimate 1-2 combination for stain fighting!

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Now offering Curbside Water Testing by Appointment Only!

Visit us online to schedule your 15-minute water testing consultation.

Simply select your store location and choose from the appointment slots available. 

Bring your water test bottle with a sample of your pool or spa water to your scheduled appointment. Please label the test bottle with your name, and drop it off at the water testing counter.


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