Call the store.
If not there check applance store or service center
Newer filters are stocked. Try Amazon if not.
Check the website, not only can you verify if Lowe's sells any item you are interested in purchasing, you will see if the item is in stock at the location nearest to you. It is also possible to purchase online ahead of your visit to the store and have it waiting. Note: sometimes the pickup counter has a wait (Lowe's needs more than one person working pickup), it could be quicker to just to just pick it off the shelf yourself.
They should. But just call first to be sure.
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