Pentair Omnifilter To1 Whole House Carbon Sediment Filter Cartridge, 5 Micron, 10" (item #to1-Ds3-S18)

Item #: TO1-DS3-S18 (sold as 2-pack)
Dimensions: 2.5" x 10"
Media: Pleated paper carbon (carbon-impregnated cellulose)
Micron Rating: 5
Reduces: Very fine sediment, chlorine taste & odor
Application: Small household (1-2 occupants)
Capacity: 15,000 gallons
Flow Rate: 5 GPM
Replacement Interval: ~3 months
Compatible Systems: OmniFilter U24, U25, U30, and most standard 10" x 2.5" housings
Water Type: Chlorinated municipal (city) water only

Get cleaner, better-tasting water throughout your home with the Pentair OmniFilter TO1 replacement cartridge (Item #TO1-DS3-S18). This economical, dual-purpose filter combines chlorine taste and odor reduction with very fine sediment filtration in a single 5-micron cartridge, making it a versatile solution for everyday whole house water filtration needs.

Built with carbon-impregnated cellulose (paper carbon) media wrapped in external netting, the TO1 offers added strength and dirt-holding capacity, effectively reducing unwanted taste, odor, and fine particles from municipal chlorinated water supplies. Sized at 2.5" x 10", it's designed for small households (1–2 occupants) and pairs best with Pentair OmniFilter U24, U25, and U30 whole house systems, while also fitting most other standard 10" x 2.5" carbon filter housings.

With a 15,000-gallon capacity, the TO1 should be replaced approximately every 3 months, or sooner if you notice a drop in water pressure or filtered water quality. It's an affordable, drop-in replacement for households looking for simple, effective chlorine and sediment reduction.