Type of product: Heater assembly Make and Model: Balboa Plug n' Click Power: Volts:?230 Hz:?50 KW:?3.0 Amps:?11.5-12.0 Specification Sensor compatibility:?M7 24 inch x 2 Material spec:?Incoloy Required flow rate:?21gpm Flow detection:?M7 Technology by using a sensor at each end of the heater assembly Compatible with: BP500/501, BP600/601, and BP2100 Connections / Fixings: Usually held in with two fixing studs, one at the top and one underneath. 2 inch white plastic female sockets to connect to plumbing. Purpose fitted plastic plug to connect to PCB to avoid damage to heater terminals and speedy replacement time. Dimensions: Heater length:15 inches Heater Diameter:2 inches Between terminals:1.25 inches Overall length complete:19.5 inches Additional notes: No need to deal with heater straps, screws, wrenches, or broken copper straps. All you need to do is plug-and-click and you're done! Previously a restricted after sales item but available to general trade once more.