Civacon's Bottom-Loading Adaptors, Gravity Couplers and Dust Caps are the perfect unison to provide the most reliable, most secure and safest loading and unloading of products into or from any cargo tank. The API Adaptors are precisely engineered and manufactured to meet international standards as well as mate with all standard loading rack couplers. Gravity Couplers have been designed for one-hand operation that frees up the operator's second hand for maneuvering the hose. Our rugged, single cam Dust Cap not only provides unparalleled protection to the Bottom Loading Adaptor, but also acts as a pressure-tight secondary seal to this connection.