The ornamental design for a waterfiltrationpitcher, as shown and described.
1. Water filtration pitcher
1.1 : Front
1.2 : Left
1.3 : Right
1.4 : Top
1.5 : Bottom
1.6 : Perspective
1.7 : Perspective
Reproduction 1.1 is a front elevation view of a filter pot showing our new design; reproduction 1.2 is a left side elevation view thereof; reproduction 1.3 is a right side elevation view thereof; reproduction 1.4 is a top plan view thereof; reproduction 1.5 is a bottom plan view thereof; reproduction 1.6 is a perspective view thereof; and reproduction 1.7 is another perspective view thereof; the present product is used for storing and filtering domestic water.