Patent ID: 8303806

Claim:
A fluid filtration apparatus comprising: a first and a second plurality of filter housings, each of the first plurality of filter housings in fluid communication with one another, each of the second plurality of filter housings in fluid communication with one another, each filter housing comprising an inlet portion and an outlet portion, each filter housing defining an elongate flow path from the inlet portion to the outlet portion, each filter housing configured to support therein a respective filter along the elongate flow path to filter a substantially continuous flow of fluid moving from the inlet portion to the outlet portion; and a valve switch in fluid communication with each of the first plurality of filter housings and the second plurality of filter housings, the valve switch movable to redirect a substantially continuous flow of fluid from flowing through the first plurality of filter housings to flowing through the second plurality of filter housings, at least a portion of each of the first plurality of filter housings detachable from the one another as the substantially continuous flow of fluid flows through the second plurality of filter housings.