Wide Application - HAXPLT1931 natural gas pilot assembly replacement for H-series millivolt/electronic ED1 style and H150/H200/H210/H250/H300/H350/H400 millivolt pool and spa/hot tub heaters, Comes with a short pilot tube for easy installation. Compatible Models - H150ED1, H150PED1, H200ED1, H200PED1, H250ED1, H250PED1, H300ED1, H300PED1, H350ED1, H350PED1, H400ED1, H400PED1, H1501, H150ED2, H150P1, H150PED2, H2001, H200ED2, H200P1, H200PED2, H2501, H250ED2, H250P1, H250PED2, H3001, H300ED2, H300P1, H300PED2, H3501, H350ED2, H350P1, H350PED2, H4001, H400ED2, H400P1, H400PED2, H250, H250N, H250P, H400, H400N, H400P Powerful Function - Bring warm water to your pool and keep it comfortable. You will enjoy swimming at night and in cold weather. Perfect ignition, no stuttering, no hassle when igniting! Superior Material - It is made of stainless steel and heat- plastic, , with a long service life, Easy to Install - Without making any modifications to the lead component, it can be replaced directly, ensuring your heating system is back up and running in no time. Note: Installation guide not included, we strongly recommend you professional installation. Please check as much as possible to make sure the item is what you need. Tips: The product may be updated constantly ,Due To Different Batches, The Actual Product May Have Slight Differences Or Color Differences, Which Does Not Affect Use Colour:Photo Color Material:Metal Package Contents: 1 x Natural Gas Pilot Fit 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.