Popular in the solar market are the 809 SR-HS and 809 SR, both in the 12 and 24 volt D.C. version.
821, 869 and 830 pumps are larger pumps available in flange or threaded housings. 821 and 869 pumps have identical flow and heads. The 869 model is a pump for higher temperatures 350 F versus 250 F for the 821 pump.
Connecting flanges are available as an option and are listed under the accessory section.
The 830 model is available in 12 and 24 volt D.C. motors, and has been in use on Public Transit Authority buses.
March Manufacturing Inc., 1819 Pickwick Ave, Glenview, IL 60025-5793. Tel: 708-729-5300; Fax: 847-729-7062.