Continental Continential offers a complete line of Progressing Cavity Pumps for the commercial wastewater and industrial markets. The goal of Continential is to offer quality products and service at a competitive price. Continental Progressing Cavity Pumps have been time tested and proven unique characteristics that make them advantageous in performance over all other kinds of Pumps.  They are built of various materials in many sizes with capacities form less than one gpm to over 500 gpm and pressure to 450 psi.