The zazen Alkaline Water System's Middle Rim is crafted from high-quality, BPA-Free ABS plastic, ensuring durability and safety without harmful chemicals. It fits to the top of the zazen BPA-Free Plastic Bottom Tank, and allows the Filter Cartridge Connector to sit in it and suspend the Multi-Stage Filter Cartridge.

The BPA-free plastic construction ensures that no harmful chemicals leach into your water, maintaining its purity and taste.