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On our GE refrigerator the water & ice filter is a 1/4 turn twist lock base. Right-tight, left-loose as always.

I read the owners manual and I see no mention of a water filter. Read it for yourself. https://products.geappliances.com/MarketingObjectR...

owner's manual explains this. its online if you need a copy

None.

Pull it out and turn it upside down.