Newell Gurus

Is there much diff, from one to the other? I'm getting ready to replace mine.

Micron difference and filter composition. depends on what the water issue is or in general, from sediment to rust to sand, etc.... I like a prefilter at the water source outside and a triple on board and all with finer filtering to the spigots. HD and Lowes have them or there is waterfiltersfast.com