The Pentek ECP5-BB is a 10" x 4.5" pleated cellulose sediment filter engineered for big blue housings, offering 5 micron nominal filtration with 18 square feet of media surface area. Its resin-impregnated cellulose and polyester construction delivers high flow rates, superior dirt-holding capacity, and exceptional wet strength for whole house, well, and commercial applications.
SPECIFICATIONS
Pentek ECP5-BB Filter Specifications
Dimensions
10" x 4.5"
Big Blue housing size
Micron Rating
5 Micron
Nominal filtration
Media Surface
18 sq ft
More than most competitive cartridges
Flow Rate
20 GPM
1 psi pressure drop
Temperature
40°F to 125°F
4.4°C to 51.7°C
Construction
Pleated
Resin-impregnated cellulose
TECHNICAL DETAILS
Materials & Construction
| Media Material | Resin-impregnated cellulose and polyester fibers |
| Core Material | Polypropylene |
| End Cap Material | Vinyl plastisol (thermo-setting) |
| End Cap Design | Unified end cap and gasket formed by immersion molding |
| Pressure Drop | 1 psi at 20 GPM |
| Model Number | ECP5-BB (Pentek 255490-43) |
| Operating Temperature | 40°F to 125°F (4.4°C to 51.7°C) |
COMPATIBILITY & APPLICATIONS
Where This Filter Works
The Pentek ECP5-BB fits standard 10-inch Big Blue filter housings with 4.5-inch diameters. It's designed for whole house sediment filtration, well water applications, and commercial installations where high dirt-holding capacity and low pressure drop are critical. The pleated design and 18 square feet of media surface area provide significantly longer service life than non-pleated cartridges. Use this filter as a primary sediment barrier to protect downstream equipment including carbon filters, water softeners, RO membranes, and appliances. The resin-impregnated construction maintains structural integrity even when saturated, preventing media migration and cartridge collapse under flow.
💧 The vinyl plastisol end caps on the ECP5-BB are molded around the pleats to create a leak-proof seal without adhesives, which means no bypass and no cartridge unloading during pressure surges.
