Tips and tricks: - use your existing vinly tubing to attach to the replacement heater. - thermistors are different sizes to prevent incorrect installation - they also have different tips on the ends of the wire to insure they can't accidentally be plugged into the wrong port on the IQ Control Box. - In most applications, the heater is connected directly inside the spas control box. Please contact us for the correct adapter . You can also utilize your your old plug end and splice onto this new heater. - it is best to drain your spa when replacing the heater - a good time to clean the shell and cover with these products
Please call our toll free tech line if you have any questions - 1-888-521-6183