10 x 4.5 Inch Replacement Filters
The 10 x 4.5 inch Big Blue cartridge is one of the most widely used sizes in whole house filtration — and this is our most complete selection for it, with 75+ options covering every major filter media type.
Shop by what you need to remove:
- Sediment — Pentek R30 and R50 spun polypropylene cartridges capture dirt, rust, sand, and silt in a range of micron ratings. American Plumber's heavy-duty sediment line is a strong choice for well water or high-sediment municipal supplies where standard cartridges clog quickly.
- Chlorine, taste & odor — Pentek EP, EPM, and GAC carbon cartridges reduce chlorine and improve the taste and smell of water throughout the home.
- OEM replacements — the GE FXHSC is a direct factory replacement for GE whole house systems using this housing size.
All cartridges in this collection fit standard 10 x 4.5 inch Big Blue housings. If you're unsure whether your housing uses this size, measure your existing cartridge or check the housing label before ordering.
Need help narrowing down the right media or micron rating for your water? Call 1-800-277-3458.
