ASIN B0030ZL8EYImage via Amazon
Pentair Pentek ECP20-20BB Big Blue Sediment Water Filter, 20-Inch, Whole House Pleated Cellulose Polyester Cartridge, 20" x 4.5", Blue End-Cap, 20 Micron
- Reduces Sediment and Particulates
- 36 Square Feet of Filter Media
- Sonically Welded for Efficiency
- Fits 20" Big Blue Housings
$45.22
Price as of Oct 16, 2026, 7:48 AM UTC. Prices and availability are subject to change. The price shown on Amazon at the time of purchase applies.
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Key features
Reduces Sediment and Particulates
Pleated cellulose polyester media captures dirt, sand, silt, and rust down to 20 microns while maintaining high flow rates for whole house water filtration
36 Square Feet of Filter Media
Pleated design provides significantly more surface area than standard cartridges for extended dirt-holding capacity and longer filter life
Sonically Welded for Efficiency
Overlap seam is sonically welded to reduce internal bypass and improve filtration efficiency; resin-impregnated fibers provide higher wet strength than regular cellulose
Fits 20" Big Blue Housings
Drop-in replacement for any standard 20" x 4.5" Big Blue or heavy-duty filter housing; blue endcap is color-coded for easy micron identification at replacement
Low Pressure Drop
Less than 1 psi at 20 gpm maintains strong water flow throughout your system; operating temperature range 40-125 degrees F; replace every 3-6 months
Pentair Pentek ECP20-20BB Big Blue Sediment Water Filter, 20-Inch, Whole House Pleated Cellulose Polyester Cartridge, 20" x 4.5", Blue End-Cap, 20 Micron
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