Can I Use A Different Brand Water Filter Replacement Cartridge In 10" under counter water filter?
I have a Watt Premier WP-2 LCV water filter. Interested in replacing the filter cartridge with a different brand filter cartridges to get lower micron filtration. The smallest this Watt Premier filter replacement cartridge I can get for this filter is
It is doubtful unless you can find a generic filter that says it will correctly replace the Watts. They are intentionally designed not to be interchangeable and if you thought you had a good fit but didn't all your effort to get better filtering would
Pleated Filter Polyester Media Cartridge 75 Micron 20"x 2.6", 6 Per Box: 
Pleated Filter Polypropylene Media Cartridge 5 Micron 20"x 4.5" Big Blue, 4 Per Box: 
String Wound Filter Cartridge Polypropylene on Polypro. Core 100 Micron 9-7/8 x 2.3", 15 Per Box: 
Delta 9 3/4" Long Water Filter Cartridge, 20 Micron Particle Filtering, Package of One 
Filter Cartridge, Pleated All-Polypropylene, 1.0 micron absolute-rated, 30-3/4" L: Pleated Polypropylene Cartri...