Quick view GREAT LAKES & GPM SPAS GREAT LAKES & GPM SPAS | ELECTRIC HEATERS FLOW THRU | C2550-0408ET MSRP: Was: Now: $130.64 GREAT LAKES & GPM SPAS | ELECTRIC HEATERS FLOW THRU | C2550-0408ET part for models : 13 1/4" FLOW THRU, 5.5kW/240V, 2.25" TUBE INCLUDES PRESSURE SWITCH -OFFSET 45°...