KOHLER K-77686-NA Aquifer Under-Sink Double Cartridge Water Filtration System

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About This Product

Gain greater confidence in the quality of your home’s drinking water with the Aquifer double-cartridge water filtration system. Designed to reduce a wide range of contaminants—including lead, mercury, chlorine, and select pharmaceuticals—this system ensures cleaner cold water without compromising faucet performance. Unlike many filters that rely on coal-based media, the Aquifer system uses carbon derived from ground-up coconut shells, offering a more sustainable solution. Its compact design fits neatly under the sink alongside other household items, and installation is quick and straightforward.

Highlights

• Two-stage filtration and absorption system 
• Compatible with most kitchen, bathroom, and beverage faucets 
• Recommended for use with Wellspring beverage and Carafe kitchen faucets 
• Dual-cartridge design maintains full faucet flow rate with no performance loss 
• Carbon filter made from eco-friendly coconut shells 
• Effectively reduces chlorine taste and odor, chloramine, lead, asbestos, cysts, mercury, turbidity, and select pharmaceuticals (refer to performance data for details) 
• Includes K-77688 Aquifer replacement cartridge 2-pack 
• Built-in valve automatically shuts off water when cartridge is removed 
• Maximum flow rate: 1.70 GPM at 60 PSI 
• Postage-paid recycling program minimizes cartridge waste 
• Durable high-impact plastic construction 
• Installs under the sink 
• Quarter-turn twist cartridge for easy changes 
• Designed for cold water use only 

Dimensions

Details