Omnifilter Rs18 Spun Polypropylene Sediment Filter Cartridge - Heavy Duty | Pentair

The Pentair OMNIFilter RS18 is a heavy-duty spun polypropylene sediment cartridge built to reduce sand, dirt, sediment, and rust particles from whole-house water supplies. Manufactured from 100% pure polypropylene fibers, the RS18 uses a true gradient density design that traps sediment throughout the cartridge - not just on the outer layer - delivering better flow rates and reduced pressure drop compared to standard sediment cartridges.

Available in both 10" and 20" heavy-duty Big Blue sizes, the RS18 is a cost-effective solution for households dealing with sediment issues, and performs equally well on municipal or well water, chlorinated or non-chlorinated supplies.

Key Features:
- Heavy-duty spun polypropylene sediment cartridge
- Gradient density design traps sediment throughout the cartridge for better flow and lower pressure drop
- Reduces sand, dirt, sediment, and rust particles
- Manufactured from 100% pure polypropylene
- Suitable for municipal or well water, chlorinated or non-chlorinated
- Available in 10" (30,000 gallon capacity) and 20" (60,000 gallon capacity) sizes
- Replace every 6 months or when water pressure/quality drops
- Fits most 10" or 20" x 4.5" heavy-duty housings

Specifications:
Brand: Pentair
Product Line: OMNIFilter
Model: RS18
Size Options: 10" x 4.5" or 20" x 4.5" (Heavy Duty)
Filtration Rating: 50 microns
Media Type: Spun polypropylene (gradient density)
Capacity: 30,000 gallons (10") / 60,000 gallons (20")
Recommended Replacement: Every 6 months
Compatible Housings: OMNIFilter BF6, BF7, BF9C, BF35, BF36C (10"); BF55 (20"); fits most other heavy-duty housings of matching size
Water Type: Chlorinated or non-chlorinated, municipal or well