KleenWater KW4510G Meltblown Dirt Rust and Sediment Water Filter Replacement Cartridges, Set of 4

What this is: a multi-stage debris filter for Big Blue and other 10x5 inch whole-house filters.What it does: Instead of being a single-layer filter, this is a 3-layer filter, packaged in such a way that the water goes through all 3 layers. The end effect is it removes particles down to 5micron. The end-caps - the blue top and bottom - are what enforces the water flow.My house is on well water, in an area where clay and iron are typical. Our well is "rich enough" in clay and iron I use 3 stages of filter before the water softener - this filter goes in the first stage. It's very effective I follow it up with a 5 micron carbon block, then a 1-micron poly filter (for rust).

Great value and catch all debris

I have a two-stage filter (large followed by smaller diameter in-line). Previously I was using 50 micron large followed by 10 micron smaller filters with good results. This "hybrid" multistage filter performs as advertised, my second-stage filter barely accumulates any sediment at all.There is no perceptible reduction in pressure, nor do I have to replace it any more often than the previous single-stage filter.No growth of iron bacteria whereas some other filter media did have this problem.I bought a full case and glad I did.

These filters are amazing!! Our well water is never clear, filling the pool and it looks )crystal clear!!

fast service. easy. what's not to like

Fast shipping , good price , good quality.

Competitively priced and do a fine job.

I've used these for several months now filtering my well water. Seem to do a better job than pleated filters for my application.