Alpha1 & Alpha2 series variable speed circulators with energy efficient motor and cast iron or stainless steel housing.
The basic one-speed circulators for primary and zoning use in heating and cooling systems.
UPS series pumps with 3-Speed manual switch (Low, Medium & High pump curves).
Comfort series circulators for domestic hot water re-circlation applications in systems with and without return water line.
Cast iron circulator pumps for use in closed loop radiant and hydronic heating systems.
Lead-free bronze circulators for domestic hot water (plumbing) and open-loop radiant (heating) applications.
Lead-free corrosion resistant circulator pumps for open/closed loop heating and plumbing applications.
Circulator isolation (shut-off) valve kits for standard Grundfos flanged circulators.