Piping flanges ANSI, DIN, JIS, Australian dimensional comparison tables.
Small pumps can be hard to find, here is a list of several small pumps using 120V AC and 12V DC. The following table is an extract from an article in the Home Power magazine of November 2007.
Bell & Gossett>
Ivan Labs . 561-747-5354 . El Sid Pumps
March Manufacturing Inc.