Pro Products Poly Guard® Cartridge - Prevent Hard Water Rust; Scale & Rust Preventer GE Desal (1206719) AG-Series Tap Water/Brackish RO Elements AG2521TF; 2.5" X 21" 300 GPD TFC; TAPE Commonly used as a post-filter

Commonly used as a post-filter for reverse osmosis systems or as a standalone filter

where chlorine and heavy metal removal is critical

Aquatec PSF-374 Technical Specs

Fits Standard Residential RO Systems

Seamless HDPE

Pro Products Poly Guard® Cartridge - Prevent Hard Water Rust; Scale & Rust Preventer GE Desal (1206719) AG-Series Tap Water/Brackish RO Elements AG2521TF; 2.5" X 21" 300 GPD TFC; TAPE Commonly used as a post-filterThe Pro Products Poly Guard Cartridge (GP10C) delivers triple action protection against scale, corrosion, and rust staining in whole house water systems. This NSF certified cartridge uses food grade polyphosphate crystals to treat up to 30,000 gallons, protecting plumbing and appliances while reducing heavy metal leaching. SPECIFICATIONS Pro Products GP10C Poly Guard Technical Details Model Number Pro Products GP10C Poly Guard Crystal Cartridge