The VT4 Model is a 3.5 GPM point-of-use system for low-flow applications (faucet, water fountain, etc.) that renders chlorine-resistant parasites, bacteria and viruses harmless. This system features compact size, low maintenance costs, stainless steel chamber and capable of 100-240V, 50-60Hz. Though the VIQUA VT4 comes in various voltages, be aware of which versions meet your requirements since the electrical connections are integrated into the controller making specific models suitable for specific voltages.