Pentair 155263-03 Iron Reduction Cartridge Filter 20 in

Product Description

The PENTAIR 155263-03 is an iron reduction resin cartridge filter designed for residential and light commercial water treatment applications. At 20 inches long with a 4.5-inch outside diameter, this cartridge fits standard big-blue style filter housings and targets dissolved iron in potable water supplies. The resin media reduces iron concentration and eliminates associated metallic taste, helping protect downstream fixtures, appliances, and plumbing components from iron-related staining and buildup. The cartridge is constructed with FDA-grade materials and is rated for water temperatures up to 100 degrees F. It is typically installed by licensed plumbers or water treatment technicians as part of a whole-home or point-of-entry filtration system.

This filter cartridge is suited for point-of-entry installations where iron content in the water supply causes taste issues or staining. Common applications include residential well-water systems and light commercial settings where influent iron levels require treatment before distribution to fixtures and equipment. The 20-inch cartridge length provides increased media volume compared to standard 10-inch cartridges, extending service intervals between replacements. Installers typically position this cartridge downstream of a sediment pre-filter to protect the resin bed from particulate loading.

Key Features

• Iron reduction resin media reduces dissolved iron and eliminates metallic taste
• 20-inch length delivers greater media volume and longer service life versus 10-inch cartridges
• 4.5-inch outside diameter fits standard big-blue filter housings
• FDA-grade materials suitable for potable water contact
• Rated for operating temperatures up to 100 degrees F

Compatibility

Designed as an OEM-style replacement cartridge for standard big-blue filter housings accepting 4.5-inch OD by 20-inch cartridges in residential and light commercial point-of-entry water treatment systems.

Installation Notes

Installation and replacement should be performed by a licensed plumber or qualified water treatment technician in accordance with applicable local plumbing codes and IPC guidelines. Shut off the water supply and relieve system pressure before opening the filter housing. Flush the system after cartridge installation to purge loose resin fines before returning the line to service. Do not exceed the rated maximum working temperature of 100 degrees F.