Watts-SF1-20 Watts String Wound Cartridge Standard 20" in K5520-BB; K5520-JJ Manufactured from 100% fused silica

Manufactured from 100% fused silica quartz

Prevents airborne particles

The reducing union allows you to step down from larger to smaller pipe sizes in any compatible material combination

or inline protection for appliances and fixtures

Watts-SF1-20 Watts String Wound Cartridge Standard 20" in K5520-BB; K5520-JJ Manufactured from 100% fused silicaWatts Premier Filtration Watts SF1 20 String Wound Sediment Cartridge Standard 20 inch polypropylene string wound filter for sediment removal in whole house and under counter applications. 1 micron rating, 2. 5 inch diameter. SEDIMENT 1 Micron 20" x 2. 5" Polypropylene WHY IT WORKS Wound Construction for Depth Filtration String Wound Design Polypropylene string wound in graduated density layers traps sediment progressively from surface to core,