V3-25
2x ZIPPY V3-25 Micro Limit Switch 2-Pins 25A 125/250VAC Normally Open
You will find that the 1 inch by 2 inches by 1 inch size works well with standard fittings.
ZIPPY V3-25 Micro Limit Switch 2-Pins 25A 125/250VAC Normally Open
This item uses ceramic components, so it won't rust or corrode over time.
2x ZIPPY V3-25S-00D3-Z Micro Limit Switch 3-Pins 25A 125/250VAC
A nice feature is the fiberglass bracket that won't corrode in damp environments.