This genuine OEM replacement mineral cartridge is designed for the Nature2 G45 system (Part No. W28145), engineered for pools up to 45,000 gallons. Using silver and copper mineral ion technology, it helps destroy bacteria and control algae, reduce chlorine requirements, and maintain clearer, softer water with less irritation and odor.

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Key Features

• Compatible with G-Series vessels (G45) and replacement for part numbers W28145 (also referenced as W26745) for pools up to ~45,000 gallons. 

• Uses silver & copper mineral ions to sanitize water—reducing the need for high chlorine residuals. 

• Cartridge life up to approximately six months under typical use. 

• Dimensions approximately 13.25″ H × 4.75″ W × 4.75″ D; weight about 2.38 kg (~5.25 lb). 

• Will not harm pool equipment or stain the pool surfaces; compatible with chlorine, salt-water, ozone, or UV systems. 

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Product Overview
The Nature2 W28145 Replacement Mineral Cartridge is ideal for service technicians and pool retail catalogs targeting maintenance of mineral-ion sanitation systems in large residential pools. Designed for the G45 vessel series, which supports up to ~45,000 gallons, this cartridge provides up to six months of sanitizing performance by releasing silver and copper ions that complement traditional chlorine-based sanitization. The result is water that feels softer, with less eye/skin irritation and fewer chlorine-related odors.

From an e-commerce perspective, position this part under “Mineral Sanitizing Cartridges – Nature2 G-Series” and highlight its value for pool owners seeking reduced chemical maintenance and enhanced swim comfort. Given its OEM status and broad compatibility (up to 45k gal), it’s a strong upsell item for annual service kits or pool closing/opening bundles.