NEW By-Pass Sizing Calculators Available
Thursday, July 30th, 2009ZONEFIRST announces a simple way to size a by-pass, just set you basic numbers on the slide rule and let the calculator indicate the size of the bhy-pass needed. On the back is a handy System Selection Guide for putting systems together. Send an e-mail to info@zonefirst.com, to request one. Don’t forget to give us your complete mailing address.

