Review on APEC FILTER MAX90: The Ultimate Complete Replacement Water Solution by Kiesha Williams

I installed them last night. Perform a TDS test with original filters before installation. I washed them completely and then checked: identical quality. All filters appear to be OEM replacement parts, which is probably why they are expensive. Installation can be difficult. It only took me 30 minutes but the water splashes a bit so you'll probably need bath towels and a large bowl. I was beginning to wonder if it wouldn't be better to just buy another unit instead of the filters, but I saved $100 that way. Once you have your system installed, you can find out. If not, you probably need a smaller set of filters where you only replace the big 3 (1 sediment and 2 activated carbon). Buy another block later if absolutely necessary. The membrane lasts a long time and is probably in order.