Air Cond Filter

During my last air cond service I miss the chance to replace the filter because of there aren't any stock available. After waiting for 2 weeks I finally able to get a piece for myself. After changing this filter I feel the air cond performance increase due to higher air flow and better cooling. As usual the old filter were dark in colour and clog up with dirt and dust.
The filter number is as the photo above, and please note that this filter need to be trim at the side before able to be use.