Are You looking for Rule 25-40A Marine Rule 500 Marine Bilge Pump with Mercury Free Rule-A-Matic Plus Float Switch (500-GPH, 12-Volt)?
These are specification details and features of Rule 25-40A Marine Rule 500 Marine Bilge Pump with Mercury Free Rule-A-Matic Plus Float Switch (500-GPH, 12-Volt) on Amazon.com :

• Sales Rank: #330756 in Sports & Outdoors
  
• Color: Red/White/Blue
• Brand: Rule
• Model: 25-40A
• Released on: 2007-03-10
• Number of items: 1
• Dimensions: 8.25" h x
  5.00" w x
  8.37" l,
  1.20 pounds
  

Features

• 3 Year Warranty

Rule 500
w/ Rule-A-Matic® Plus™ Float Switch

The Rule 500 offers many design features while keeping size and cost to a minimum. Especially popular on smaller craft, Rule 500 pumps are unmatched in pumping power and longevity. 3/4" (19mm) discharge outlet. 12 Volts DC unless noted.

Features:

• Fully Submersible
  
• Easy clean snap lock strainer
  
• Silent and vibrationless operation
  
• Anti-airlock protection
  
• Compact, efficient long life motor
  
• Ignition protected
  
• No burn-out when run dry
  
• Rust and Corrosion protection
  
• Used by leading boatbuilders worldwide
  
• marine grade blocked wiring

Rule-A-Matic® Plus™ Float Switch
Sleek and rugged, the Rule-A-Matic Plus float switch has a strong, fully integrated, impact resistant cover, which protects against debris and jamming. 14 gauge highly abrasive resistant marine grade wire, and a built-in test feature. Designed for pumps drawing up to 20 Amps now includes a 2 year warranty.