Dimension One Spa, 5.5/3.4/2.1/1.3Kw 240v Laing Dual Elbow 3-D Trombone Heater. Includes Grounding Lug, Insulation And Tubing. 1998+ Dimension One Spa Heater. Same as 01781-20. This Heater Does NOT Have An Internal Auto Reseting High Limit Switch. If The High Limit Trips You Will Have To Open The Heater Terminal Box And Reset It.
Flow Switch Sold Separately, Part Number; DIM01710-130