Pentair Pentek DGD-2501-20 Big Blue 20-Inch 1-Micron Sediment Filter Cartridge (Pack of 2)

Why choose the DGD-2501-20 for your whole house filtration

Elevate your daily water experience with the Pentair Pentek DGD-2501-20 Big Blue cartridge. Sized for 20-Inch Big Blue housings, this 1 micron sediment cartridge uses dual-gradient density spun polypropylene to capture fine particulates while preserving the water’s natural character. Its clean design emphasizes purity through materials that resist imparting taste, odor, or color, helping you enjoy clearer feedback at every faucet.

Built for performance, the DGD-2501-20 benefits from a larger diameter that reduces particle load and from an increased effective filter depth of 233 percent, contributing to higher filtration efficiency and greater loading capacity. These design features offer the potential for steady flow and longer service intervals without sacrificing water clarity, making it suitable for a wide range of residential and commercial settings.

Key benefits

• KEEP YOUR WATER CLEANER - Reduces dirt, sand, silt and particulates and helps protect your appliances. DGD Big Blue cartridges are designed for purity and will not impart taste, odor or color to your water.
• IDEAL HIGH-FLOW PRE-FILTER - Dual-gradient density design increases filtration from outer to inner surfaces, delivering 3X the dirt-holding capacity of similar size sediment cartridges with less than 1 psi pressure drop at 20 gpm
• TESTED AND CERTIFIED BY NSF INTERNATIONAL to NSF/ANSI Standard 42 for material requirements. Manufactured with 100% pure polypropylene for dependable, chemical-compatible performance
• SIZED FOR USE IN ALL 20-INCH BIG BLUE filter housings and other heavy duty housings. Drop-in replacement for any 20" x 4.5" sediment filter cartridge in whole house and point-of-entry systems
• REPLACE EVERY 6 MONTHS or when you notice a drop in water pressure or water quality. Operating temperature range: 40-145 degrees F (4.4-62.8 degrees C)

What to expect in real life

In a two-pack, you can maintain consistent filtration across multiple outlets in your home. The 1 micron rating targets finer particles while supporting a comfortable flow, helping everyday routines—from kitchen taps to showers—remain uninterrupted.

How to install and maintain

• Drop-in replacement for 20" x 4.5" Big Blue housings
• Install in the correct orientation as per housing instructions
• Replace every 6 months or sooner if pressure or quality drops