This heater is a universal flo-thru heater, which means that it can be used in a variety of spas and hot tubs. It is a 4.0 kW heater, which means it can heat up to 400 gallons of water by 40 degrees Fahrenheit. The heater has multiple pressure switch locations, which allows you to install the pressure switch in the most convenient location. The thermowell cover is adjustable, which allows you to adjust the flow of water through the heater. The heater has 2" plumbing connections, which makes it compatible with most spas and hot tubs.
This heater is a good choice for spas and hot tubs that need a reliable and efficient heater. It is also a relatively affordable option.
Here are some additional tips for choosing a hot tub heater:
The size of the heater should be based on the size of the spa or hot tub. A rule of thumb is to get a heater that is rated for 1.5 kW per 100 gallons of water.
The voltage of the heater should match the voltage of the spa or hot tub.
The heater should be made of a durable material, such as stainless steel.
The heater should have a flow-through design to ensure that the water is heated evenly.
The heater should have multiple pressure switch locations to make it easy to install.
