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According to their website, the strainers are placed in order of Lowest (left) to Highest (right), Tested Flow Rates based on RPM's. Firovac's HV-LL Strainer is on the Far Right!!
Click on the Link Below to Visit Got Big Water's Website to View the Testing Results and Details!
http://www.gotbigwater.com/apps/public/news/newsView.cfm?News_ID=318