My application is 3/8" connections. Wire mesh inline filter for this would be Wix numbers 33270 and33253
http://www.wixfilters.com/filterlookup/results.asp?PartNo=33270&Submit=Search
http://www.wixfilters.com/filterlookup/results.asp?PartNo=33253&Submit=Search
http://www.wixfilters.com/filterlookup/results.asp?PartNo=33270&Submit=Search
http://www.wixfilters.com/filterlookup/results.asp?PartNo=33253&Submit=Search