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Flex Seal FSB20 is a spray rubber sealant that comes in a fourteen-ounce container. This product creates a waterproof barrier on a variety of surfaces. It is suitable for indoor and outdoor use, providing a strong seal to prevent leaks and moisture damage.
Flex Seal FSB20 is designed for quick application and strong performance in sealing and protecting surfaces. Ideal for home repairs and maintenance, this product helps prevent water leaks effectively.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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