| Author | Topic | 
 
  
Location:  Central Coast 
Registered: April 2003
 | 
	| 
		
		18RGU
	 | 
	
		 
		Tue, 23 November 2004 09:43 
		 
	 | 
 
  |  
	| 
	
	This may be a stupid question, but what is the porthole in the top of the 18gru for?? I have seen some with filters and some with rubber tubes. Can anybody help??/ 
	
	
	
	
	 | 
 
 
 | 
 | 
|   | Subject | Poster | Date | 
  | 
 
  
18RGU 
 | 
rockguru | Tue, 23 November 2004 09:43 | 
  | 
 
  
Re: 18RGU
 | 
people100 | Tue, 23 November 2004 10:48 | 
  | 
 
  
Re: 18RGU
 | 
Norbie | Tue, 23 November 2004 23:29 | 
  | 
 
  
Re: 18RGU
 | 
buderimboy | Wed, 24 November 2004 10:57 | 
  | 
 
  
Re: 18RGU
 | 
brett_celicacoupe | Wed, 24 November 2004 11:00 | 
  | 
 
  
Re: 18RGU
 | 
buderimboy | Wed, 24 November 2004 11:25 |