SWT 04232 dual pressure switch, .17 WC low and .50 WC high; replaces SWT 01741, SWT 01760, SWT 02261, SWT 02266 and SWT 02357SWT 04232 dual pressure switch, .17 WC low and .50 WC high; replaces SWT 01741, SWT 01760, SWT 02261, SWT 02266 and SWT 02357