Replacement Alkaline WTR FLTR Cartridge

Stage 4 of the Home WTR Hub Multi-Stage filtration system.

The finishing stage. Reverse osmosis strips water down to almost nothing, taking the good with the bad. This cartridge gives the good back. It reintroduces beneficial minerals like calcium, magnesium, and zinc, naturally sourced for better body absorption, and raises the water's pH for a smoother, cleaner taste.

Replace every 12-18 months. Each cartridge produces roughly 900 to 1,000 gallons, about a year of mineralized water for most households. Subscribe and Save 15% and it arrives right on schedule.

What it does: Reintroduces beneficial minerals: calcium, magnesium, and zinc. Raises pH for a smoother, cleaner taste, and better body absorption. The remineralization stage every RO system needs. Compatible with Home WTR HUB or any RO system.