iSpring FM25B Whole House Iron & Manganese Reduction Filter Cartridge – 4.5" x 20"

Keep your home’s water clean, clear, and healthy with the iSpring FM25B Whole House Water Filter Cartridge. Designed to fit iSpring whole house systems (WGB32BM & WGB22BM), this heavy‑duty cartridge is engineered for powerful iron and manganese removal, enhancing taste and protecting your plumbing and appliances.

Key Features:

- Advanced Iron & Manganese Reduction – Specially formulated catalytic media reduces iron from up to 3.0 ppm to 0.01 ppm and manganese from 1.0 ppm to 0.01 ppm.

- High Flow & Low Pressure Drop – Delivers strong filtration performance while maintaining excellent water pressure (20–100 psi feed pressure; approx. 5 psi drop @ 8 GPM flow rate).

- Long Service Life – Rated for up to 50,000 gallons (at 3.0 ppm iron), roughly 12 months of use at 200 GPD, and lasts up to three times longer than traditional greensand filters.

- Durable & Stable Performance – Performs reliably within a pH range of 5.8–8.6 and temperatures from 40°F to 113°F.

- Safe for Drinking Water Applications – Manufactured to meet strict FDA requirements and independently tested against NSF/ANSI standards for quality, safety, and structural integrity.

Protect your family and your home’s water system with the iSpring FM25B whole house filter!