Excellent info. Looking at the site the SSS/SSL are Reed switch operation and not capacitance. Not a big deal but are more along the lines of click I'm @ 3/4, click I'm @ 1/2, etc...
Marine Liquid Level Sensors by WEMA USA, Inc.
Liquid Sensors - Marine Diesel, Fuel, or Water Level Sensor
I need to get off my butt and T/S some more before I move forward.
I'm in the same boat as Sledge. Would rather have the parts on hand already.
This site piqued my interest as the capacitance senders are trimmable for length.
Hardin Marine - Fuel Tank Gauge Senders