Power box assembly with built-in air flow switch and W8600E compatibility. Includes a 60 inch power cord with 3-prong plug. Honeywell 2 year warranty. Installation is simple, mounts with two screws, then plug in. This Series 1 power box is equiped with a terminal strip for the W8600E. This power box can be used with the F50F series 1 or 2. If using this power box without a W8600E or W8600F, then Series 1 or 2 does not matter. When using this power box with the newer W8600F, then replace the terminal strip and driver card with that supplied with the W8600F. Used in the 20 x 20 F50F1032 120v. Replaces 203315A.