Considering the price of something like a Raritan II and the parts obsolescence of the HC. Places like Defender sell the most common parts need for the HF individually, so you don]t always end up with a bunch of stuff you don't need when you rebuild. I have two 23 YO HFs that both work fine. They are easy to service, and I don't have to deal with a new footprint and hose layout. And the price of two new heads.