Usage Tips:[Product Introduction]The HAXPLT1931 natural gas pilot assembly replacement for H-series ed1 style pool heater. Made from materials. Comes with a short pilot tube. [Compatible Number]HAXPLT1931 natural gas pilot for H-series millivolt/electronic ED1 style and H150/H200/H210/H250/H300/H350/H400 millivolt pool and spa/hot tub heaters. [For Your Warm Pool]HAXPLT1931 natural gas pilot, ignition for pool heaters, includes chxgen1930 millivolt pilot generator which delivers 750 millivolts maximum (0.75 ).Under normal circumstances it should be between 400 and 500 mv. [Safety and Reliability]This pilot is made with materials to optimal performance, provide the ultimate safety and reliability. It is equipped with a short pilot tube and easy installation. Colour:Silver Material:Metal Package Contents: 1x Pool Heater Parts Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.