Aries (AF-20-3318-BB) 20"x4.5" Big Blue Scale Inhibitor Phosphate Filter Heavy Metal Reduction1911 inhibiting bacterial growth and preventing

inhibiting bacterial growth and preventing algae formation throughout the filter lifespan

extending filter life

💧 The pleated design means you can clean this filter 3-5 times before replacement

✓ 36 sq ft media surface area ✓ Resin-impregnated cellulose ✓ Color-coded white end caps ✓ Low pressure drop design

5" FNPT ports

Aries (AF-20-3318-BB) 20"x4.5" Big Blue Scale Inhibitor Phosphate Filter Heavy Metal Reduction1911 inhibiting bacterial growth and preventingAries Filter Works AF 20 3318 BB 20"x4. 5" Big Blue Scale Inhibitor Phosphate Filter Food grade phosphate crystals that prevent scale buildup and corrosion in whole house and commercial water systems NSF 61 Listed FDA Grade Materials 20" x 4. 5" Big Blue Whole House The Aries AF 20 3318 BB uses pharmaceutical grade polyphosphate crystals to sequester hardness minerals and prevent lime scale from forming on pipes, heating elements, and glass surfaces.