Product review (5 stars): Works great!
Contrary to what it said in the instructions about the size of the fitting being slightly larger for a better fit it went right in and fits great I would recommend this for 3M filters without a hesitation<a data-hook="product-link-linked" class="a-link-normal" href="/AQUACREST-CS-52-Replacement-for-3M-Cuno-CS-52-CS-51-Bosch-640565-Refrigerator-Water-Filter/dp/B01G515TAS/ref=cm_cr_arp_d_rvw_txt?ie=UTF8">AQUACREST CS-52 Replacement for 3M Cuno CS-52, CS-51, Bosch 640565 Refrigerator Water Filter</a>