The Spa Components B24055Q Flo Thru Heater Assembly is used in a variety of spas, including Sundance Spas, Spa Builders, and Pinnacle Spa Controls. Made from stainless steel, this heater measures 2-1/4″ x 15″ and has a power rating of 5.5k – W/230v. It also features a 1/8″ NPT pressure switch tap and two 10-32 x 3/8″ mounting studs for easy installation. One important thing to note about this heater is that tailpieces, gaskets and pressure switch are sold separately. – Housing Configuration – Straight – Heater Length – 15″Threaded Tap Orientation – 12 O`Clock – Kilowatts – 1.375k – W, 5.5k – WVoltage – 115v, 230v – Sensor Stud Orientation – 3 O`Clock – Mounting Stud Type – Fixed – Heater Size – 2″Heater Application – Pinnacle, Spa Builders, Sundance – Fitment guidelines:For use with Pinnacle, Spa Builders, Sundance – Additional information:Alternate Part Numbers – 1-HA-B24055Q, 2-00-0013, 2-00-7003, 20-00227, 20-00228, 20-00294, 26-0056-7S-K, 26-0056-7T-K, 26-0456-K, 26-0800-7S-K, 403986, 46-371-1214, 48-3300-10-275H, 48-3300-10-456H, 530AA0107, 6000-156, 610473, 611038, C2550-0056, C2550-0056A, C2550-0056ET, C2550-0456, C2550-0456ET, C2550-0803A