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Captain Bob thought he had found Paradise!  But then, he encountered the No See-um!  Not wanting to spend the beautiful Florida summers trapped inside, he set to work creating a natural, effective option to repel even the most vicious no see-um’s.  After years of research and effort, Captain Bob’s Amazing No See Um Repellent was born!

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Our Products

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GR Technologies where Science and Technology come together. Captain Bob's Amazing No See Um Repellent is made from all natural, organic, plant based products.  We grow our own Lemongrass , Rosemary and Guanabana Trees that we extract the essential oils from. This not only gives our products a longer shelf life but it strengthens the overall effectiveness as well as adding a fresh, tropical scent to the finished product.

At GR Technologies we work hard at staying on top of the latest research in the Organic Repellents Industry.  All of our products active ingredients are thoroughly tested for effectiveness, longevity, contaminants, purity and combined mixture shelf life.  We make our products in small batches and we personally test every batch.


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Captain Bob's Amazing No See Um Spray is all natural and has been tried, tested and proven at Sebastian Inlet in Florida.

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No See Um

A No See Um is no larger than the size of the letter D on a dime.  But they can pack a ferocious punch.  A No See Ums Bite is not only painful but can cause a serious welt that can last for several days or even weeks.  

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