MiniMax PowerMax Heater Burner made by Pentair 070230 Used on the following heaters: MiniMax NT STD with 6800 Controller Part No. used in Model Nos., 200, 250, 300, 400. Qty. = Model 200 (2 ea.), 250 (3 ea.), 300 (4 ea.), 400 (6 ea.). MiniMax NT STD with DDTC Controller Part No. used in Model Nos., 200, 250, 300, 400. Qty. = Model 200 (2 ea.), 250 (3 ea.), 300 (4 ea.), 400 (6 ea.). MiniMax Plus Part No. used in Model Nos., 150, 200, 250, 300, 350, 400 PowerMax Part No. used in Model Nos., 150, 200, 250, 300, 350, 400 MiniMax CH Heater, 150 IID Model Burner Qty. 2