• Manufacturer: Watts• Actual Filter Size: 2-1/2" x 9-7/8"• Micron Rated: 5 Micron• Core/Center Tube: PP• Temperature Rated: 140°FMinimum Order Quantity: 25 FiltersWatts SF5-978 Poly Wound PP replacement filter cartridgesWatts Poly Wound (aka: String Wound) Filter Cartridges can be used to remove dirt, rust, sand, sediment and silt from your water.Specifications of the SF5-978• Manufacturer: Watts• Actual Filter Size: 2-1/2" x 9-7/8"• Micron Rated: 5 Micron• Core/Center Tube: PP• Temperature Rated: 140°FStandard Features of PP Wound filters• Polypropylene fibers for purity and chemical compatibility• Meets FDA requirements for food & beverage contact• Standard cartridges rated for temperatures to140°F ( Up to to 200°F with SS Cores )• Packaged in poly-bags for cleanliness• Filter used to remove dirt, rust, sand, sediment and silt from your water• These filters are recommended to be changed every 6 to 12 months, or sooner, depending on water quality, usage or application. • Manufactured from 100% pure polypropylene fibersWatts-StringWound.pdf