Collection: Pentair

Pentair Pentek, Everpure, OMNIFilter and FreshPoint Water Filter Cartridges

Replacement water filter cartridges from Pentair brands. To order the right one, match three things: the housing size (cartridge length and diameter), the filter type (sediment, carbon or iron reduction) and, for sediment filters, the micron rating. The lists below group each cartridge by size and type, and link to its product page.

Big Blue Sediment Filters (4.5 inch diameter)

10-inch cartridges:

20-inch cartridges:

Big Blue Carbon and Iron Reduction Filters (4.5 inch diameter)

Standard Size Filters (2.5 inch diameter)

Everpure and FreshPoint

How to Choose

Start with the housing. Check the length (10 or 20 inches) and the width (2.5 or 4.5 inches) of the housing or your current cartridge, and the model number printed on it. Sediment filters catch particles such as sand and silt, and a lower micron number means a finer filter. Carbon filters are chosen for taste and odor, and iron reduction filters are for water with iron. If you are not sure which type your system needs, check the system's manual or the product page before ordering.

How Often to Replace

Replacement timing depends on your water quality and how much water you use. Follow your system's manual, and replace sooner if you notice reduced flow or a change in taste.

Our Fit Guarantee and Shipping

If you order the wrong cartridge, our Fit Guarantee and 30-day returns are described in our return policy. Shipping is free on all US orders, and orders are handled in 2 to 3 business days.

Pentair Filter Questions

What do the numbers mean in a name like R50-BB? The model name identifies the filter. The product title lists the length, diameter and micron rating, so check those rather than relying on the name alone.

Is a 10-inch filter the same as a 20-inch filter? No. Check your housing length before ordering.

What if I ordered the wrong one? Contact us and see the return policy linked above.