Abstract: A universal threaded adapter to mount between a pump and a tank can be of two types. The universal threaded adapter is assembled from an adapter body with a tank to adapter gasket seal mounted therein, and a conversion plate, which may be bolted or otherwise secured to both the adapter body and the pump; to thereby efficiently join the pump to the tank. With the dual phase adapter attached to the pump through the mixing threads, the adapter may be shipped separately from the pump. The pumping mechanism provides an aperture with a seal to achieve the desired pumping device while at the same time permitting the required mixing.