The BRS DIY Kalkwasser Dripper Kit is an essential tool for advanced saltwater aquarium hobbyists looking to maintain precise calcium and alkalinity levels in their reef tanks. This kit includes all the components needed to build a kalkwasser feeder, such as a clear acrylic tube, inline ball valve, push connect bulkhead tank adapter, elbows, and tubing. With these parts and your choice of storage container, you can easily create a custom kalkwasser dripper that continuously dispenses calcium hydroxide solution into your aquarium water. To complete the setup, you will need additional materials like a drill bit suitable for your chosen container, safety glasses, tube cutter, purified fresh water, and kalkwasser itself. This kit is ideal for reef tank owners who want to automate the process of supplementing their tanks with calcium and alkalinity in a consistent manner.