Quote:
Originally Posted by E90Fleet
That is the correct number.
Mann may just have updated the design a bit.
New filters are often a little stiff and fit snugly.
The new filter does say CU-1721 on the side ?
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Yes, it does say CU-1721 on the side..
It doesn't flex, instead bends so I'm worried to slide it into the holder lest it gets stuck.