You bet. The Laguna 4280 is better for the 2000 model. I keep my 2000’s around 3-3.5k each but with pressure rates pumps like Reeflo. I’ve run a 1000 model with a Laguna 2400 and thought it was good. Just requires backwash more often due to the smaller size of the filter. If you do go Laguna use soft line to limit restriction
Most people who seem to have issues with mechanical are wildly overdoing the flow. A hammerhead on a 1000 is insane flow for something maxes out at 2,400 GPH. Set up correctly they are great for both mech and bio.
I do prefer to have K1 offset some bio. Mainly because I have tons around and it’s good insurance. I’ve ran Ultima only and been happy with both mech and bio.
Wouldnt the laguna 4280 be too much flo for the ultima 2000?.... don't they recommend 2,000 gph for the ultima 2000 ?
I dont have much head loss at all on my lagunamax flo 2400s...... I'm prob getting 1800 gph roughly on each so idk how much your laguna 4280 is actually pumping thru with head loss?

