Product review (5 stars): These had a center inlet but without the perimeter openings and works great. Be care and make sure you get the ...
My through the door water had not worked properly for years. The output was extremely slow until I finally got the correct filter. All were 8001 variants that are the same size and same connection, but with different openings for water input/output. These had a center inlet but without the perimeter openings and works great.  Be care and make sure you get the correct cross-reference of water filter for your refrigerator.