I know this is waaaaay off topic but I am wondering if anyone has run into suppliers for differential pressure gauges? I guess that also gages for some of you ;-] The replacement is a Dwyer 2-5000 but I'd like to cheap out on the replacement until I can put the digital system in. Any help is appreciated.! Thanks Guys Dave The only thing that helps me maintain my slender grip on reality is the friendship I share with my collection of singing potatoes -- http://www.piclist.com hint: The list server can filter out subtopics (like ads or off topics) for you. See http://www.piclist.com/#topics