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UK Window Cleaning Forum => Window Cleaning Forum => Topic started by: Davew on December 22, 2006, 09:11:48 am

Title: 40 40?
Post by: Davew on December 22, 2006, 09:11:48 am

Quick question, whats a 40 40 ro system? Is it the length of membrane in inches or what? 'scuse my ignorance.

Title: Re: 40 40?
Post by: Pj on December 22, 2006, 09:24:53 am

Yes