Big Blue 20" x 4.5" OD Melt Blown PP Dual Gradient Water Filters
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20" x 4.5" diameter Big Blue NSF Melt Blown Dual Gradient Polypropylene Sediment Filters reduce sand, silt, scale and rust particles in residential, commercial and municipal drinking water.
Dual gradient filters have to seperate gradient layers for higher particle reduction efficieny and dirt-loading capacity than standard spun or string-wound cartridges.
These filters fit any brand of 20" long Big Blue filter housings, including Waterite, Harmsco, GE Osmonics, Flomatic, Clack and Watts.
Melt Blown Polypropylene Dual Gradient Sediment Filters remove dirt, sand, sediment, rust and suspended particles. Bacteria resistant filter media is made from #1 Grade polypropylene.
NSF Certification: Millions of people take the safety of their food, water and consumer products for granted on a daily basis because of NSF certification. This certification is your key to making sure that the products you use meet strict standards for public health protection