This flameholder kit is designed to use with Pentair MasterTemp pool and spa heater model 400 and also compatible with Pentair Sta-Rite Max-E-Therm pool and spa heater model 400. Arrival time will depend on your location. If you have any questions, feel free to ask. Thank you for visiting! Weight:2.0000SCID:181070Dimension:13.000×6.000X13.000.