Are You looking for Rule 37A Marine Super Switch (Mercury Free)?
These are specification details and features of Rule 37A Marine Super Switch (Mercury Free) on Amazon.com :

• Sales Rank: #32402 in Sports & Outdoors
  
• Color: White
• Brand: Rule
• Model: 37A
• Released on: 2007-03-10
• Number of items: 1
• Dimensions: 3.00" h x
  6.00" w x
  8.00" l,
  .40 pounds
  

Features

• 5 Year Warranty

SuperSwitch™ Float Switch

Now backed by a 5 year warranty, the non-mercury SuperSwitch is designed for the toughest applications. Design includes marine grade 14 gauge blocked wire, larger float for increased buoyancy, removable base for easy servicing and a snap switch design capable of handling pumps drawing up to 20 Amps.

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