Below, you will find some links to specific pump spec sheets. As always, if you have any questions, please call us directly.

BELL & GOSSETT - http://www.bellgossett.com/BG-Catalog-English.asp
GRUNDFOS - http://grundfos.com/web/homeus.nsf/Webopslag/UGRD-5E9BXF
TACO - http://www.taco-hvac.com/en/products/Water+Circulation+Pumps+%26amp%3B+Circulators/products.html?current_category=18