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The Sta-Rite S.T.E.P. Plus D series is a 4" diameter multi-stage submersible effluent pump designed for moving clean and gray water in residential, commercial and agricultural use. Designed for use in aerobic and filtered effluent service applications. Energy efficient and built for superior "draw-down" operation. Features: 1-1/4" fiberglass reinforced thermoplastic discharge Stainless steel intake screen allows for 0.080" solids Superior draw-down capability to 4-1/2" vs. 13-1/2" on a standard NEMA 4" Less energy consumption with 25% reduced amp-draw vs. a standard NEMA 4" Cooler and quieter operation, eliminates expensive flow inducer sleeves Stainless steel and composite construction Proven SignaSeal staging system utilizes a patented ceramic wear surface Exclusive dry-run capability Enclosed and self-lubricated Nylatron shaft-bearing resists wear from abrasives Heavy 7/16" positive drive 300 Series stainless steel hexagonal shaft Precision molded for perfect balance, ultra smooth, for the highest performance and efficiency Motor is dry-wound, double ball bearing, double-seal and thermal overload protected, UL and CSA approved Power cord is 600 Volt "SJOW" jacketed 10 ft leads, 2-wire with ground STA-RITE S.T.E.P. PLUS D SERIES EFFLUENT PUMPS Model Comparison Chart Model Discharge HP Voltage Phase Best Efficiency GPM Max. Load Amps 20DOM05221+1 1-1/4" 1/2 230 1 20 5.3 20DOM05121+1 1-1/4" 1/2 115 1 20 10.6 20DOM05121-01 1-1/4" 1/2 115 1 20 9.5 20DOM05221-01 1-1/4" 1/2 230 1 20 4.6 10DOM05221-01 1-1/4" 1/2 230 1 10 5.5 10DOM05121-01 1-1/4" 1/2 115 1 10 11.0 30DOM05221-01 1-1/4" 1/2 230 1 30 4.6 30DOM05121-01 1-1/4" 1/2 115 1 30 9.5 PUMP PERFORMANCE SETTINGS DIMENSIONAL DATA TROUBLESHOOTING MANUAL Sta-Rite S.T.E.P. Plus D Series Owner's Manual SPECIFICATIONS Sta-Rite S.T.E.P. Plus D Series Specifications Pump Products application engineers are standing by to help you find the right pump, as well as to provide price quotes, stocking availability and shipping information. Call our toll free number 1-800-429-0800 to speak to an expert today.