#011660 Pentair C-Series Commercial Bronze Pool Pump, 15HP, Model #CHK-150, 15HP, 220-440V, 3-phase Curve Key: D Pentair C Series Commercial Bronze Pump With Hair and Lint Strainer Bronze volute and pot coated cast iron foot flanged connections 6 in. suction 4 in. discharge Features: Large commercial pump with s/s basket Easy serviceability All-bronze construction for strength and durability 6 in. suction and 4 in. discharge for maximum capabilities Heavy-gauge stainless steel strainer basket with an open area 5 t 50 and 60-Hertz models Product Specifications NEMA STANDARD EFFICIENCY THREE PHASE 220-440V - WITH HAIR AND LINT STRAINER.https://www.pentair.com/en-us/products/business-industry/commercial-pool-products/commercial-pool-pumps/c-series--commercial-bronze-pumps.html