Air filter

Guys

I am looking to purchase the washable K & N filter for my experimental.

I have the square filter and currently purchase it from Sporty's every year but would like to wash it not replace it.

Does anybody know where I can order one or pu locally at a auto store.

Thanks

Should be Pn# CP1150 for the smaller square filter. This number is for the PMA'ed (FAA Approved) one. Probably $100 ouch