g and h elastomeric seal 450 is illustrated as sealing passageways 603 and 610 in valve 108 passageway 610 is formed by wall 611 and passageway 603 is formed by wall 605 which is horn shaped see fig6 a perspective view 600 of the valve and its handle 108 which are used in both the first embodiment and the second embodiment of the water filtration device the handle portion of the valve includes an insert 109 which may glued to a corresponding recess 109 a in the handle see fig1 0124 fig4 a is a cross sectional view 400 a taken along the lines 4 a 4 a of fig4 illustrating the generally cylindrical wall 401 to which the collar lock 105 is welded fig4 e is a cross sectional view 400 e illustrating the collar lock 105 secured to the wall 401 with the collar 104 being rotatable and movable slightly vertically for engagement with a faucet screen 110 is also illustrated in fig4 a referring again to fig4 a valve 108 is not shown therein so as to view the valve stop 407 which controls the rotation of the valve between its first bypass position and its second filter position valve cavity 430 is tapered as it extends inwardly as indicated by circular lines 412 and 431 see fig4 a and 4b ports.