Are You looking for Rule 98A Marine Shower Drain Kit (800 -GPH , 12-Volt, Multi-Port Inlet, Mercury Free)?
These are specification details and features of Rule 98A Marine Shower Drain Kit (800 -GPH , 12-Volt, Multi-Port Inlet, Mercury Free) on Amazon.com :

• Sales Rank: #131486 in Sports & Outdoors
  
• Color: White
• Brand: Rule
• Model: 98A
• Released on: 2007-03-10
• Number of items: 1
• Dimensions: 6.00" h x
  10.00" w x
  14.00" l,
  3.50 pounds
  

Features

• 3 Year Warranty

Shower Drain System

A compact, full capacity shower drain system. Automatically turns on after the water starts, and shuts off when the water is removed. Activated by a Rule-A-Matic float switch. Three inlet ports which offer varying combinations of inlet hose. Other features include a clear screw down cover, a removable strainer for easy cleaning, and an internal check valve to prevent back flow.

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