With their self-lubricating design and no mechanical seal, Taco 00 ® Series Cartridge Circulators provide unmatched reliability that makes them maintenance free. Every Taco 00 ® Series Cartridge Circulator and 00 IFCm® Circulator features a field-replaceable cartridge that contains all the moving parts. Replacing the cartridge rebuilds the Circulator, so field service is fast and simple. 00 ® Series Cartridge Circulators wide variety of configurations, flange orientation, mounting and other options, materials and capabilities provide you with great performance in a broad range of applications. Taco 00 IFC ® Cartridge Circulators feature an Integral Flow Check (IFC) that eliminates the additional installation costs that go along with separate in-line flow checks, improves system performance and further reduces maintenance.