DISCONTINUED

2/26/13: Both the CU-99204R and the CU-HL are Honeywell controls.

10/5/16:confirmed by Tasha at Mr Steam that CU-99204R and CU-HL have been discontinued. Look to D1 Plus control.

9/12/17: updated confirmation with Rosario at Mr Steam it has been discontinued for a couple of years and they have depleted stock. Prior to the F1, the CU-99204R was the Temp control. It was replaced by the F1 Plus and then was sold as a part only for the boilers that were out there that did not have an F1 yet or had to convert to an F1. Now hey have to convert to the digital D1 Plus.