Saratoga Spa Heater

Very common Saratoga heater, used for years on various models. 3" X 13 1/2" vertical tube for use w/ small circ pump setups, 4 kW, 240V, both ends are 90 degree 3/4" barbed tailpeices. Mounting studs are 4" apart, bulkhead element contacts are 6" apart. 1/8" npt pressure switch tap is next to sensor mount plate. Thermcore brand.