Overview Reviews Similar Products Product Description Gecko Series Spas & Hot Tubs Heaters / Heatwave 5.5KW - 9920-100347 HEATER: HEAT.WAV, 5.5KW, 2'', 2PSI, M-CLASS Heater for M-CLASS / MSPA / 5kW Allied Part # 2-00-7511 IN.FLO integrated dry-fire protection Product Videos Custom Field Product Reviews Find Similar Products by Category Recommended Quick view Gecko Series S-Class Heatwave 5.5KW - 9920-100339 $235.45 $169.95 Add to Cart Quick view Gecko Heater 5.5Kw 240V 2" M-CLASS / MP, - 9920-100347 $149.95 Add to Cart Quick view Heater for Gecko M-CLASS / MSPA / 4.0KW 15" x 2" 9920-100346 $199.95 Add to Cart