Your search for american international returned the following:

Power line noise filter (15-amp/250-watt)

IN STOCK

19 people say 

• connects to receiver's power line
• helps reduce receiver noise from 12-volt line

Power line noise filter

IN STOCK

3 people say 

• connects to receiver's power line
• helps reduce receiver noise from 12-volt line

Antenna noise filter

OUT OF STOCK

14 people say 

• Connects between antenna and receiver
• helps reduce antenna noise