100% Silicone Aquarium Sealant - 3oz. Black
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Aqueon

Our 100% silicone aquarium sealant is easy to apply and waterproof to stop leaks. The high strength silicone creates a permanent seal that will not crack or shrink and is non-toxic making it perfect for use on all aquariums. For Black Seal aquariums use black sealant. 3oz.