1 Lead-Free Tankless Water Heater Valve Kit - Female National Pipe Thread x Female National Pipe ThreadThe 1 Female National Pipe Thread x Female National Pipe Thread Lead Free Tankless Water Heater Valve Kit is a vital accessory for installing and maintaining tankless water heaters. The kit includes two valves with (FNPT) connections on both ends, to control the flow of water to the heater. These valves are built from lead free brass to comply with current plumbing safety regulations, ensuring that the water remains safe for consumption.