Grundfos SQ 3" Borehole Pumps

The Grundfos SQ 3” borehole pumps are high performance solutions for pumping water from smaller wells and boreholes in applications including water supply, irrigation and pressure boosting, as well as liquid transfer in tanks.
Grouped product items
Model Voltage Motor Outlet Max. Flow Max. Head SKU RRP Our Price (ex VAT)
Model: SQ1-35 Voltage: 230V Motor: 0.7 kW Outlet: 1-1/4" Maxflow: 25 l/min Maxhead: 47 m SKU: 3913-000 RRP: £914.00 Our Price:
£877.44 £731.20
Model: SQ1-50 Voltage: 230V Motor: 0.7 kW Outlet: 1-1/4" Maxflow: 25 l/min Maxhead: 71 m SKU: 3913-001 RRP: £987.00 Our Price:
£947.52 £789.60
Model: SQ1-65 Voltage: 230V Motor: 0.7 kW Outlet: 1-1/4" Maxflow: 25 l/min Maxhead: 94 m SKU: 3913-002 RRP: £1,063.00 Our Price:
£1,020.48 £850.40
Model: SQ1-80 Voltage: 230V Motor: 1.15 kW Outlet: 1-1/4" Maxflow: 25 l/min Maxhead: 118 m SKU: 3913-003 RRP: £1,283.00 Our Price:
£1,231.68 £1,026.40
Model: SQ1-95 Voltage: 230V Motor: 1.15 kW Outlet: 1-1/4" Maxflow: 25 l/min Maxhead: 142 m SKU: 3913-004 RRP: £1,336.00 Our Price:
£1,282.56 £1,068.80
Model: SQ1-110 Voltage: 230V Motor: 1.15 kW Outlet: 1-1/4" Maxflow: 25 l/min Maxhead: 166 m SKU: 3913-005 RRP: £1,389.00 Our Price:
£1,333.44 £1,111.20
Model: SQ1-125 Voltage: 230V Motor: 1.68 kW Outlet: 1-1/4" Maxflow: 25 l/min Maxhead: 189 m SKU: 3913-006 RRP: £1,655.00 Our Price:
£1,588.80 £1,324.00
Model: SQ1-140 Voltage: 230V Motor: 1.68 kW Outlet: 1-1/4" Maxflow: 25 l/min Maxhead: 213 m SKU: 3913-007 RRP: £1,710.00 Our Price:
£1,641.60 £1,368.00
Model: SQ1-155 Voltage: 230V Motor: 1.85 kW Outlet: 1-1/4" Maxflow: 25 l/min Maxhead: 237 m SKU: 3913-008 RRP: £1,763.00 Our Price:
£1,692.48 £1,410.40
Model: SQ2-35 Voltage: 230V Motor: 0.7 kW Outlet: 1-1/4" Maxflow: 50 l/min Maxhead: 45 m SKU: 3913-009 RRP: £945.00 Our Price:
£907.20 £756.00
Model: SQ2-55 Voltage: 230V Motor: 0.7 kW Outlet: 1-1/4" Maxflow: 50 l/min Maxhead: 68 m SKU: 3913-010 RRP: £1,004.00 Our Price:
£963.84 £803.20
Model: SQ2-70 Voltage: 230V Motor: 1.15 kW Outlet: 1-1/4" Maxflow: 50 l/min Maxhead: 89 m SKU: 3913-011 RRP: £1,112.00 Our Price:
£1,067.52 £889.60
Model: SQ2-85 Voltage: 230V Motor: 1.15 kW Outlet: 1-1/4" Maxflow: 50 l/min Maxhead: 109 m SKU: 3913-012 RRP: £1,244.00 Our Price:
£1,194.24 £995.20
Model: SQ2-100 Voltage: 230V Motor: 1.68 kW Outlet: 1-1/4" Maxflow: 50 l/min Maxhead: 132 m SKU: 3913-013 RRP: £1,543.00 Our Price:
£1,481.28 £1,234.40
Model: SQ2-115 Voltage: 230V Motor: 1.85 kW Outlet: 1-1/4" Maxflow: 50 l/min Maxhead: 155 m SKU: 3913-014 RRP: £1,598.00 Our Price:
£1,534.08 £1,278.40
Model: SQ3-30 Voltage: 230V Motor: 0.7 kW Outlet: 1-1/4" Maxflow: 58 l/min Maxhead: 36 m SKU: 3913-015 RRP: £908.00 Our Price:
£871.68 £726.40
Model: SQ3-40 Voltage: 230V Motor: 0.7 kW Outlet: 1-1/4" Maxflow: 58 l/min Maxhead: 56 m SKU: 3913-016 RRP: £961.00 Our Price:
£922.56 £768.80
Model: SQ3-55 Voltage: 230V Motor: 1.15 kW Outlet: 1-1/4" Maxflow: 58 l/min Maxhead: 74 m SKU: 3913-017 RRP: £1,112.00 Our Price:
£1,067.52 £889.60
Model: SQ3-65 Voltage: 230V Motor: 1.15 kW Outlet: 1-1/4" Maxflow: 58 l/min Maxhead: 92 m SKU: 3913-018 RRP: £1,244.00 Our Price:
£1,194.24 £995.20
Model: SQ3-80 Voltage: 230V Motor: 1.68 kW Outlet: 1-1/4" Maxflow: 58 l/min Maxhead: 110 m SKU: 3913-019 RRP: £1,543.00 Our Price:
£1,481.28 £1,234.40
Model: SQ3-95 Voltage: 230V Motor: 1.68 kW Outlet: 1-1/4" Maxflow: 58 l/min Maxhead: 129 m SKU: 3913-020 RRP: £1,598.00 Our Price:
£1,534.08 £1,278.40
Model: SQ3-105 Voltage: 230V Motor: 1.85 kW Outlet: 1-1/4" Maxflow: 58 l/min Maxhead: 147 m SKU: 3913-021 RRP: £1,651.00 Our Price:
£1,584.96 £1,320.80
Model: SQ5-15 Voltage: 230V Motor: 0.7 kW Outlet: 1-1/2" Maxflow: 100 l/min Maxhead: 18 m SKU: 3913-022 RRP: £898.00 Our Price:
£862.08 £718.40
Model: SQ5-25 Voltage: 230V Motor: 0.7 kW Outlet: 1-1/2" Maxflow: 100 l/min Maxhead: 36 m SKU: 3913-023 RRP: £918.00 Our Price:
£881.28 £734.40
Model: SQ5-35 Voltage: 230V Motor: 1.15 kW Outlet: 1-1/2" Maxflow: 100 l/min Maxhead: 54 m SKU: 3913-024 RRP: £1,112.00 Our Price:
£1,067.52 £889.60
Model: SQ5-50 Voltage: 230V Motor: 1.15 kW Outlet: 1-1/2" Maxflow: 100 l/min Maxhead: 71 m SKU: 3913-025 RRP: £1,244.00 Our Price:
£1,194.24 £995.20
Model: SQ5-60 Voltage: 230V Motor: 1.68 kW Outlet: 1-1/2" Maxflow: 100 l/min Maxhead: 89 m SKU: 3913-026 RRP: £1,598.00 Our Price:
£1,534.08 £1,278.40
Model: SQ5-70 Voltage: 230V Motor: 1.85 kW Outlet: 1-1/2" Maxflow: 100 l/min Maxhead: 106 m SKU: 3913-027 RRP: £1,651.00 Our Price:
£1,584.96 £1,320.80
Model: SQ7-15 Voltage: 230V Motor: 0.7 kW Outlet: 1-1/2" Maxflow: 150 l/min Maxhead: 21 m SKU: 3913-028 RRP: £1,230.00 Our Price:
£1,180.80 £984.00
Model: SQ7-30 Voltage: 230V Motor: 1.15 kW Outlet: 1-1/2" Maxflow: 150 l/min Maxhead: 42 m SKU: 3913-029 RRP: £1,336.00 Our Price:
£1,282.56 £1,068.80
Model: SQ7-40 Voltage: 230V Motor: 1.68 kW Outlet: 1-1/2" Maxflow: 150 l/min Maxhead: 64 m SKU: 3913-030 RRP: £1,710.00 Our Price:
£1,641.60 £1,368.00

Grundfos SQ 3” borehole pumps are commonly used for the pumping of water from smaller boreholes and wells for water supply, irrigation, pressure boosting and lowering groundwater levels. Their compact diameter enables these submersible borehole water pumps to be used in 3inch boreholes, or 4inch that have reduced in size due to ochre deposits.

The SQ Grundfos borehole pumps offer higher performance than other 3” models on the market, with similar flow rate and pressure capabilities to 4” borehole pumps. With their AISI 304 Stainless Steel construction and floating impellers, these Grundfos pumps are constructed to withstand corrosion and offer a reliable service, whilst handling sand content up to a maximum of 50g/m3.

These submersible borehole water pumps are equipped with highly efficient permanent magnet motors with built-in frequency converter with soft start. Soft start reduces the starting current which gives the pump a smooth and steady acceleration, minimising the risk of wear on the pump and prevents overloading of the mains. Also equipped with dry run and under/overload protection, this Grundfos borehole pump range will cut out in the event of lack of water or an unstable voltage supply to prevent motor burnout.

Grundfos SQ Specifications:
►Maximum sand content: 50g/m3
►Maximum liquid temperature: 40°C
►Flow rates up to 150lpm (largest flow model)
►Head up to 237m (highest pressure model)
►Designed for 3inch boreholes
►Dry run protection
►Under/overload protection
►Frequency converter with soft start
►Stainless steel casing for anti-corrosion
►230V permanent magnet motor with high efficiency


As a longstanding Grundfos pump supplier, Whisper Pumps are highly experienced in all models. If you are unsure on the borehole water pump model you require, please contact our technical sales team today on 01777 871100 for free, expert advice.

UK & Ireland Delivery CostsDelivery Map

Zone 1 - England, Wales and Southern Scotland

Standard Delivery (2-5 working days) - Orders Under £100 - £7.50 / Over £100 - FREE

Express Next Working Day - £15

Premium Next Working Day (delivery before 13.00) - £26

Zone 2 - Scottish Highlands & Islands, Northern Ireland, Isle of Man, Scilly & Channel Isles

Standard Delivery (3-5 working days) - Orders Under £100 - £15 / Over £100 - FREE

Express Delivery (2-3 working days) - £15

Zone 3 - Republic of Ireland

Standard Delivery (3-5 working days) - Orders Under £100 - £15 / Over £100 - FREE

Orders must be placed before 14.00 for next day and premium next day delivery.

International Delivery

We offer a first class worldwide export service. Please contact us here for a price.

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