Versatile-connectability filter housing and system

A versatile-connectability filter housing and system. The housing comprising: two parts in serial configuration along a first longitudinal axis; a first housing part comprises a first main fluid communication port; a second housing part comprises a second main fluid communication port; wherein each housing part comprises a connective means located near or at a circular edge of the housing part, respectively, matching a circular edge of the other housing part; wherein the longitudinal axes of said first fluid communication port and of said second fluid communication port are perpendicular to the first longitudinal axis; wherein an angle between projections of the longitudinal axes of said first fluid communication port and of said second fluid communication ports on a common plane perpendicular to the first longitudinal axis is 360 degrees variable upon releasing the coupling clamp, wherein said angle is fixable by the coupling clamp at any desired angular value. 101f - 0 111b1 12 Fig. 1A Fig. lB