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The Grundfos 45s-SP series of submersible well pump ends is available for 4” maximum diameter wells. The Grundfos SP series submersible pump end is recognized worldwide for its reliable performance and high energy efficiency. The SP series is made entirely of corrosion-resistant stainless steel in order to ensure a long product life in the most demanding environments. This is a pump end only. Motor is not included. Features: State-of-the-art hydraulics provide high efficiency and low operating costs 100 % stainless steel inside and outside Sand resistant Resistant to aggressive water Reduces risk of corrosion GRUNDFOS 45s-SP SERIES WELL PUMP ENDS Model Comparison Chart Model Discharge (NPT) HP Stages RPM GPM Max. Head 45S20-5 2" 2 5 3450 58.55 144.19' 45S10-3 2" 1 3 3450 58.55 86.1' 45S15-4 2" 1-1/2 4 3450 58.55 115.45' 45S30-7 2" 3 7 3450 58.55 202.83' 45S50-9 2" 5 9 3450 58.55 260.21' 45S50-12 2" 5 12 3450 58.55 347.51' 45S75-15 2" 7-1/2 15 3450 58.55 433.38' 45S75-15 2" 7-1/2 15 3450 58.55 433.38' 45S75-18 2" 7-1/2 18 3450 58.55 520.68' 45S75-18 2" 7-1/2 18 3450 58.55 520.68' 45S100-22 2" 10 22 3450 58.55 634.55' 45S100-22 2" 10 22 3450 58.55 634.55' 45S100-25 2" 10 25 3450 58.55 720.94' 45S100-25 2" 10 25 3450 58.55 723.3' 45S150-28 2" 15 28 3450 58.55 811.52' 45S150-31 2" 15 31 3450 58.55 901.31' 45S150-34 2" 15 34 3450 58.55 983.25' 45S150-37 2" 15 45 3450 58.55 1075.39' 45S200-40 2" 20 40 3450 58.55 1162.3' 45S200-43 2" 20 43 3450 58.55 1243.98' 45S200-47 2" 20 47 3450 58.55 1361.78' 45S200-51 2" 20 51 3450 58.55 1479.58' 45S250-54 2" 25 54 3450 58.55 1565.45' 45S250-57 2" 25 57 3450 58.55 1652.88' 45S250-60 2" 25 60 3450 58.55 1745.03' 45S250-63 2" 25 63 3450 58.55 1828.27' PERFORMANCE CURVES DIAGRAM BROCHURE Grundfos 45s-SP Series Well Pump Ends Brochure TECHNICAL DATA Grundfos 45s-SP Series Well Pump Ends Technical Data PRODUCT FLYER Grundfos 45s-SP Series Well Pump Ends Product Flyer 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.