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Welcome to Your New Odor Control Solution


Inca Gold, which has been one of the premier toilet deodorant and holding tank treatment products in the transportation industry for over 45 years, has now officially made its way into the consumer market!

Inca Gold's unique and pleasant green apple scent is not offered by any other company on the consumer market today. It is one of the few deodorizing products out there that has the strength to completely mask foul odors, but the subtleness not to overpower your sense of smell while doing so. Take advantage of both the power and convenience of Inca Gold the next time you reach for a black water holding tank odor control solution for your boat or RV.

For Inquiries and Commercial Ordering:

Phone: 800-223-3684

Mon - Fri: 8:00 AM - 4:00 PM CST


​Sat and Sun: Closed​


1550 E. Old 210 Highway

Liberty, MO 64068

About Douglas Products


Douglas Products is a multifaceted company that has stood the test of time for over 100 years now. Through our various divisions, we provide high-quality products and solutions to industries ranging from global agriculture, structural pest control, thermal fluids, wastewater management, and more.

Being headquartered right outside of Kansas City, Missouri, our main warehouse has central proximity to virtually every coast and corner of the United States, assuring that our products are easily obtainable, no matter where you are located. But it's not just our products that we pride ourselves on providing excellence in accessibility for, we strive to implement that same level of attainable excellence into our customer service as well. With that being said, whether you are a current customer of ours or a prospective one, we thank you for taking Douglas Products into consideration for your specialty product needs!

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