A housing for a filter element ; the housing comprising: a) a can having a wall surrounding an interior volume and an open mouth ; the can wall having an inner wall surface in communication with the interior volume ; and b) an interface ring inserted in and secured to the can adjacent to the open mouth ; (i) the interface ring having a ring wall with first and second opposite ends , an outer ring surface , and an inner ring surface ; (ii) the outer ring surface being against the inner wall of the can ; (iii) the ring wall being angled at a non-zero and non-perpendicular angle between a line parallel to a central axis of the interface ring and a portion of the outer ring surface between the first and second ends, wherein by having the ring wall angled at said angle and the interface ring inserted into the can , the can is stretched at stretched section , adjacent to the mouth , c) a seal member at the open mouth to form a seal with a filter head , when the housing is secured to a filter head , wherein: the interface ring has a beveled surface from the first end at the outer ring surface and extending to the inner ring surface ; the can has a section folded over and against the beveled surface ; and the seal member is against the folded section of the can , characterized by the fact that said angle is greater than 1° and less than 6°. a) a can having a wall surrounding an interior volume and an open mouth ; the can wall having an inner wall surface in communication with the interior volume ; and b) an interface ring inserted in and secured to the can adjacent to the open mouth ; (i) the interface ring having a ring wall with first and second opposite ends , an outer ring surface , and an inner ring surface ; (ii) the outer ring surface being against the inner wall of the can ; (iii) the ring wall being angled at a non-zero and non-perpendicular angle between a line parallel to a central axis of the interface ring and a portion of the outer ring surface between the first and second ends, wherein by having the ring wall angled at said angle and the interface ring inserted into the can , the can is stretched at stretched section , adjacent to the mouth , (i) the interface ring having a ring wall with first and second opposite ends , an outer ring surface , and an inner ring surface ; (ii) the outer ring surface being against the inner wall of the can ; (iii) the ring wall being angled at a non-zero and non-perpendicular angle between a line parallel to a central axis of the interface ring and a portion of the outer ring surface between the first and second ends, wherein by having the ring wall angled at said angle and the interface ring inserted into the can , the can is stretched at stretched section , adjacent to the mouth , c) a seal member at the open mouth to form a seal with a filter head , when the housing is secured to a filter head , the interface ring has a beveled surface from the first end at the outer ring surface and extending to the inner ring surface ; the can has a section folded over and against the beveled surface ; and the seal member is against the folded section of the can , characterized by the fact that said angle is greater than 1° and less than 6°. <EOS>