iSpring FM25B Whole House Water Filter Cartridge

The iSpring FM25B is a high-capacity replacement water filter designed for iSpring whole-house water filtration systems. It is specially designed to reduce iron and manganese from water, helping improve overall water quality.

The filter can reduce iron from a maximum of 3.0 ppm to 0.01 ppm and manganese from a maximum of 1.0 ppm to 0.01 ppm. It provides a 4–8 GPM flow rate with feed water pressure of 20–100 PSI and is designed to operate across a pH range of 5.8–8.6.

The FM25B has a filtration capacity of 50,000 gallons at 3.0 ppm iron, with an approximate filter life of 12 months at 200 GPD. It is designed specifically for iSpring WGB22BM and WGB32BM whole-house filtration systems.

Compatible Systems

• iSpring WGB22BM
• iSpring WGB32BM

Key Features

• Reduces iron & manganese
• 4–8 GPM flow rate
• 50,000-gallon capacity
• 4.5" × 20" size
• 20–100 PSI feed pressure
• Approx. 12-month filter life

Specifications

• Brand: iSpring
• Model: FM25B
• Size: 4.5" × 20"
• Weight: 8 lbs
• Dimensions: 6" D × 22" W × 6" H
• Certification: ANSI

Recommended Replacement

Replace approximately every 12 months at 200 GPD, or based on water quality and usage.