Pentair Pentek DGD-2501 25/1 Micron Big Blue Water Filter Cartridge

Maintain cleaner, better-performing water filtration with the Pentair Pentek DGD-2501 Dual Gradient Sediment Water Filter Cartridge. This genuine replacement cartridge features an advanced dual-gradient polypropylene design that captures larger sediment particles on the outer layer while trapping finer particles toward the inner core. The result is higher dirt-holding capacity, longer service life, and consistent water flow.

Designed for use in standard 10" x 4.5" Big Blue filter housings, the DGD-2501 helps reduce sediment, rust, sand, silt, scale particles, and other suspended contaminants that can affect water quality and damage plumbing fixtures and appliances. It's an excellent choice for whole-house water filtration systems, helping protect water heaters, washing machines, dishwashers, and other water-using equipment.

Key Features

• Genuine Pentair Pentek replacement sediment filter
• Model: DGD-2501
• Part Number: 155359-43
• Dual-gradient polypropylene depth filtration
• 25-micron outer layer and 1-micron inner layer
• Helps reduce sediment, rust, sand, silt, and scale particles
• High dirt-holding capacity for extended filter life
• Maintains strong, consistent water flow
• Fits standard 10" x 4.5" Big Blue filter housings
• Easy installation and replacement
• Includes one (1) filter cartridge

Compatible Part Numbers

• 155359-43
• DGD-2501
• SP-DD-2501-BB
• XXX155355-43
• XXX155359-43
• XXX555471-43

Compatible Models

Compatible with select systems and housings, including:

• American Plumber HD-950
• American Plumber W10-PR
• American Plumber W15-PR

Note: Please verify your existing filter model, part number, and filter housing dimensions before purchasing to ensure proper compatibility.