Fits Maax Cocoon whirlpools only models 102722-091, 102723-091, 102724-091. Not to be used with other Maax models or manufacturers. This is a great sale price on this brand new factory sealed heater, this will be a limited sale price. Item has a 2 year manufactor warrnty, if there was a problem, it would have to be sent back to them for replacement.