Sorry, didn't see the reply from the Shop Shark. Thanks for posting the pictures Bob. I have the airflow heater. The name plate says its a Harrison H-02-47. I've disassembled the unit and tested the core by submerging it in water and pressurizing it with a tire pump. It has two leaks from what I can tell. One is on the out edge and would be easy to fix, but the other leak is coming from deep down in the core, not sure how to fix that. I really don't want to have issues with this down the road, which is why I'm looking to replace the core. The one new core I did find says it is not intended for pressure greater than 4 PSI, which is my concern.
