1Dual Switch: Compared with a single switch for both directions, our bypass valves have two independent switches for separate control of water flow, offering greater flexibility and convenience. 2Unlimited Water Flow: With our products, you can enjoy full water flow capacity without any restrictions and any reduction in water flow, ensuring consistent and efficient performance. 3Brass Internal: Made with internal brass parts, this ensures durability and longevity compared to other brands that use plastic to meet your winter Rv winterization needs. 4Anti Freeze Cycle: Designed for winter Rv use, the 3 way bypass valve ensures an effective anti freeze cycle that correctly protects your Rv plumbing system in cold temperatures. 5Easy to Use: Turn off the pump and taps, close the water heater bypass valve (if available), connect the pump converter kit to the inlet, and begin pumping Rv antifreeze through water system.