Discover our range of dosing and disinfection pumps and accessories—designed for accurate chemical injection in water treatment, industrial processing, and municipal systems. At Pump‑Stop.com, we carry advanced Grundfos SMART Digital diaphragm dosing pumps like the DDE and DDA series, featuring variable-speed stepper motors, full stroke operation, and intuitive LCD controls. You'll also find essential OEM extras such as check valves, injection units, pressure relief and loading valves, calibration kits, and signal cables. These units offer precision, air-degas protection, and simplified commissioning—ideal for chlorination, pH control, and enzyme dosing. Each component is engineered for durability and seamless integration with compatible systems. Not sure which pump suits your application? Our knowledgeable team is ready to guide you. Enjoy fast U.S. shipping and secure checkout every time.
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GRUNDFOS
Grundfos 99333933 - Injection Unit 0400-10 PV/V/T 4A8-41/120
Sale price$1,205.82
Regular price$1,642.00
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GRUNDFOS
Grundfos 99333935 - Injection Unit 0400-10 PV/T/T 4A8-41/120
Sale price$1,218.89
Regular price$1,799.00
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GRUNDFOS
Grundfos 99333936 - Injection Unit 0400-10 SS/T/SS 4A4-41/120
Sale price$1,218.89
Regular price$1,517.00
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GRUNDFOS
Grundfos 99420242 - MTR4 EXP 1/2HP 3x208T 56c | Vertical | Immersible | Multistage
Sale price$1,783.56
Regular price$2,004.00
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GRUNDFOS
Grundfos 99420273 - MTR4 EXP 0.75HP 3x208T 60HZ 56C Inv | Vertical | Immersible | Multistage
Sale price$2,381.64
Regular price$2,676.00
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GRUNDFOS
Grundfos 99420276 - MTR4 EXP 1.5HP 3X208T 145TC Dosing Inv | Vertical | Immersible | Multistage
Sale price$2,057.68
Regular price$2,312.00
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GRUNDFOS
Grundfos 99420281 - MTR4 EXP 2HP 3X208T 145TC Dosing Inv | Vertical | Immersible | Multistage
Sale price$3,001.97
Regular price$3,373.00
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GRUNDFOS
Grundfos 99421876 - DDA 7.5-16 FCM-PV/T/T-F-31U7U7BS | Horizontal | End Suction | Centrifugal
Sale price$3,577.80
Regular price$5,963.00
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GRUNDFOS
Grundfos 99421877 - DDA 12-10 FCM-PV/T/T-F-31U7U7BS | Horizontal | End Suction | Centrifugal
Sale price$3,829.20
Regular price$6,382.00
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GRUNDFOS
Grundfos 99421878 - DDA 17-7 FCM-PV/T/T-F-31U7U7BS | Horizontal | End Suction | Centrifugal
Sale price$3,829.20
Regular price$6,382.00
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GRUNDFOS
Grundfos 99421879 - DDA 30-4 FCM-PV/T/T-F-31U7U7BS | Horizontal | End Suction | Centrifugal
Sale price$4,036.80
Regular price$6,728.00
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GRUNDFOS
Grundfos 99421880 - DDA 60-10 FCM-PV/T/T-F-31A7A7BS | Horizontal | End Suction | Centrifugal
Sale price$6,055.20
Regular price$10,092.00
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GRUNDFOS
Grundfos 99421881 - DDA 120-7 FCM-PV/T/T-F-31A7A7BS | Horizontal | End Suction | Centrifugal
Sale price$6,552.00
Regular price$10,920.00
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GRUNDFOS
Grundfos 99421883 - DDA 200-4 FCM-PV/T/T-F-31A7A7BS | Horizontal | End Suction | Centrifugal
Sale price$6,813.60
Regular price$11,356.00
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GRUNDFOS
Grundfos 99519067 - DDE 200-4 AR-SS/V/SS-F-32A3A3BG | Dosing Pump | Economical | Digital
Sale price$4,677.60
Regular price$7,796.00
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GRUNDFOS
Grundfos 99589882 - DME 940-4 AR-SS/T/SS-S-31A4A4B | Dosing Pump | Stepper Motor | High Accuracy
Sale price$9,317.14
Regular price$15,274.00
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GRUNDFOS
Grundfos 92549179 - Sensor | chlorine dioxide 0-2ppm, E-528
Sale price$3,124.38
Regular price$3,633.00
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GRUNDFOS
Grundfos 95721977 - Kit | servo Motor 115-230V 4-20mA
Sale price$3,496.00
Regular price$4,370.00
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GRUNDFOS
Grundfos 95729959 - DDA Suitcase Demo-US, CA | Dosing Pump | Digital | High Accuracy
Sale price$3,072.28
Regular price$3,452.00
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GRUNDFOS
Grundfos 95729965 - DDC Suitcase Demo-US, CA | Dosing Pump | Digital | Compact
Sale price$2,642.41
Regular price$2,969.00
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GRUNDFOS
Grundfos 95729971 - DDE Suitcase Demo- US,CA | Dosing Pump | Economical | Digital
Sale price$2,426.14
Regular price$2,726.00
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GRUNDFOS
Grundfos 97777206 - DDA 7,5-16 FCM-A/V/C-F-31U2U2BG | Horizontal | End Suction | Centrifugal
Sale price$1,860.60
Regular price$3,101.00
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GRUNDFOS
Grundfos 97850018 - Hose Kit | 0.125x0.25" 100 ft PE
Sale price$103.55
Regular price$109.00
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GRUNDFOS
Grundfos 97918766 - Calibration Column 100ml PVC | Motor | High Efficiency
Sale price$162.87
Regular price$183.00
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GRUNDFOS
Grundfos 97918767 - Calibration Column 250ml PVC | Motor | High Efficiency
Sale price$168.21
Regular price$189.00
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GRUNDFOS
Grundfos 97918768 - Calibration Column 500ml PVC | Motor | High Efficiency
Sale price$185.12
Regular price$208.00
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GRUNDFOS
Grundfos 97918769 - Calibration Column 1000ml PVC | Motor | High Efficiency
Sale price$197.58
Regular price$222.00
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GRUNDFOS
Grundfos 97918770 - Calibration Column 2000ml PVC | Motor | High Efficiency
Sale price$347.10
Regular price$390.00
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GRUNDFOS
Grundfos 97918771 - Calibration Column 4000ml PVC | Motor | High Efficiency
Sale price$567.82
Regular price$638.00
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GRUNDFOS
Grundfos 97918772 - Calibration Column 10000ml PVC | Motor | High Efficiency
Sale price$595.41
Regular price$669.00
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GRUNDFOS
Grundfos 97918773 - Calibration Column 20000ml PVC | Motor | High Efficiency
Sale price$1,191.71
Regular price$1,339.00
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GRUNDFOS
Grundfos 97918775 - Calibration Column 250ml Glass/PVDF | Motor | High Efficiency
Sale price$1,388.40
Regular price$1,560.00
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GRUNDFOS
Grundfos 97918776 - Calibration Column 500ml Glass/PVDF | Motor | High Efficiency
Sale price$1,859.21
Regular price$2,089.00
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GRUNDFOS
Grundfos 97918777 - Calibration Column 1000ml Glass/PVDF | Motor | High Efficiency
Sale price$2,381.64
Regular price$2,676.00
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GRUNDFOS
Grundfos 97918778 - Calibration Column 2000ml Glass/PVDF | Motor | High Efficiency
Sale price$3,109.66
Regular price$3,494.00
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GRUNDFOS
Grundfos 97918779 - Calibration Column 4000ml Glass/PVDF | Motor | High Efficiency
Sale price$4,919.92
Regular price$5,528.00
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GRUNDFOS
Grundfos 97918780 - Calibration Column 6000ml Glass/PVDF | Motor | High Efficiency
Sale price$9,037.95
Regular price$10,155.00
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GRUNDFOS
Grundfos 98156690 - Acc. Adapter RSL, G2"in, 2"NPT out
Sale price$59.63
Regular price$67.00
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GRUNDFOS
Grundfos 98158535 - DME 940-4 AR-SS/T/SS-F-31A4A4B | Dosing Pump | Stepper Motor | High Accuracy
Sale price$9,237.84
Regular price$15,144.00
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GRUNDFOS
Grundfos 98257648 - Hose Kit | 0.125x0.25" 100 ft PVC
Sale price$114.00
Regular price$120.00
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GRUNDFOS
Grundfos 98306210 - Level Switch-1L-PE with clip D32
Sale price$201.14
Regular price$226.00
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GRUNDFOS
Grundfos 98372478 - DME 375-10 AR-SS/T/SS-F-31A4A4B | Dosing Pump | Stepper Motor | High Accuracy
Sale price$7,770.79
Regular price$12,739.00
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GRUNDFOS
Grundfos 98500153 - DTS 15GT 0004FVF0A0G | Dosing Tank Station | Modular | Compact
Sale price$781.42
Regular price$878.00
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GRUNDFOS
Grundfos 98500154 - DTS 15GT 0004FVG0A0G | Dosing Tank Station | Modular | Compact
Sale price$783.20
Regular price$880.00
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GRUNDFOS
Grundfos 98500155 - DTS 15GT 0004FVH0A0G | Dosing Tank Station | Modular | Compact
Sale price$794.77
Regular price$893.00
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GRUNDFOS
Grundfos 98500156 - DTS 15GT 0004RVF0A0G | Dosing Tank Station | Modular | Compact
Sale price$858.85
Regular price$965.00
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GRUNDFOS
Grundfos 98500157 - DTS 15GT 0004RVG0A0G | Dosing Tank Station | Modular | Compact
Sale price$859.74
Regular price$966.00
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GRUNDFOS
Grundfos 98500158 - DTS 15GT 0004RVH0A0G | Dosing Tank Station | Modular | Compact
Sale price$869.53
Regular price$977.00
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GRUNDFOS
Grundfos 98500159 - DTS 15GT 0004FEF0A0H | Dosing Tank Station | Modular | Compact
Sale price$779.64
Regular price$876.00
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GRUNDFOS
Grundfos 98500160 - DTS 15GT 0004FEG0A0H | Dosing Tank Station | Modular | Compact
Sale price$782.31
Regular price$879.00
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GRUNDFOS
Grundfos 98500161 - DTS 15GT 0004FEH0A0H | Dosing Tank Station | Modular | Compact
Sale price$792.99
Regular price$891.00
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GRUNDFOS
Grundfos 98500162 - DTS 15GT 0004REF0A0H | Dosing Tank Station | Modular | Compact
Sale price$857.07
Regular price$963.00
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GRUNDFOS
Grundfos 98500163 - DTS 15GT 0004REG0A0H | Dosing Tank Station | Modular | Compact
Sale price$858.85
Regular price$965.00
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GRUNDFOS
Grundfos 98500164 - DTS 15GT 0004REH0A0H | Dosing Tank Station | Modular | Compact
Sale price$868.64
Regular price$976.00
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GRUNDFOS
Grundfos 98500165 - DTS 15GT 0004FTF0A0I | Dosing Tank Station | Modular | Compact
Sale price$872.20
Regular price$980.00
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GRUNDFOS
Grundfos 98500166 - DTS 15GT 0004FTG0A0I | Dosing Tank Station | Modular | Compact
Sale price$873.98
Regular price$982.00
Save $108.79
GRUNDFOS
Grundfos 98500167 - DTS 15GT 0004FTH0A0I | Dosing Tank Station | Modular | Compact
Sale price$880.21
Regular price$989.00
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GRUNDFOS
Grundfos 98500168 - DTS 15GT 0004RTF0A0I | Dosing Tank Station | Modular | Compact
Sale price$947.85
Regular price$1,065.00
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GRUNDFOS
Grundfos 98500169 - DTS 15GT 0004RTG0A0I | Dosing Tank Station | Modular | Compact
Sale price$948.74
Regular price$1,066.00
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GRUNDFOS
Grundfos 98500170 - DTS 15GT 0004RTH0A0I | Dosing Tank Station | Modular | Compact
Sale price$957.64
Regular price$1,076.00
Save $106.70
GRUNDFOS
Grundfos 98500171 - DTS 26GT 0004FVF0A0G | Dosing Tank Station | Modular | Compact
Sale price$863.30
Regular price$970.00
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GRUNDFOS
Grundfos 98500172 - DTS 26GT 0004FVG0A0G | Dosing Tank Station | Modular | Compact
Sale price$867.75
Regular price$975.00
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GRUNDFOS
Grundfos 98500173 - DTS 26GT 0004FVH0A0G | Dosing Tank Station | Modular | Compact
Sale price$874.87
Regular price$983.00
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GRUNDFOS
Grundfos 98500174 - DTS 26GT 0004RVF0A0G | Dosing Tank Station | Modular | Compact
Sale price$930.05
Regular price$1,045.00
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GRUNDFOS
Grundfos 98500175 - DTS 26GT 0004RVG0A0G | Dosing Tank Station | Modular | Compact
Sale price$931.83
Regular price$1,047.00
Save $116.38
GRUNDFOS
Grundfos 98500176 - DTS 26GT 0004RVH0A0G | Dosing Tank Station | Modular | Compact
Sale price$941.62
Regular price$1,058.00
Save $106.37
GRUNDFOS
Grundfos 98500177 - DTS 26GT 0004FEF0A0H | Dosing Tank Station | Modular | Compact
Sale price$860.63
Regular price$967.00
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GRUNDFOS
Grundfos 98500178 - DTS 26GT 0004FEG0A0H | Dosing Tank Station | Modular | Compact
Sale price$866.86
Regular price$974.00
Save $108.02
GRUNDFOS
Grundfos 98500179 - DTS 26GT 0004FEH0A0H | Dosing Tank Station | Modular | Compact
Sale price$873.98
Regular price$982.00
Save $114.84
GRUNDFOS
Grundfos 98500180 - DTS 26GT 0004REF0A0H | Dosing Tank Station | Modular | Compact
Sale price$929.16
Regular price$1,044.00
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GRUNDFOS
Grundfos 98500181 - DTS 26GT 0004REG0A0H | Dosing Tank Station | Modular | Compact
Sale price$930.05
Regular price$1,045.00
Save $116.27
GRUNDFOS
Grundfos 98500182 - DTS 26GT 0004REH0A0H | Dosing Tank Station | Modular | Compact
Sale price$940.73
Regular price$1,057.00
Save $117.70
GRUNDFOS
Grundfos 98500183 - DTS 26GT 0004FTF0A0I | Dosing Tank Station | Modular | Compact
Sale price$952.30
Regular price$1,070.00
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GRUNDFOS
Grundfos 98500184 - DTS 26GT 0004FTG0A0I | Dosing Tank Station | Modular | Compact
Sale price$953.19
Regular price$1,071.00
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GRUNDFOS
Grundfos 98500185 - DTS 26GT 0004FTH0A0I | Dosing Tank Station | Modular | Compact
Sale price$963.87
Regular price$1,083.00
Save $126.06
GRUNDFOS
Grundfos 98500186 - DTS 26GT 0004RTF0A0I | Dosing Tank Station | Modular | Compact
Sale price$1,019.94
Regular price$1,146.00
Save $126.17
GRUNDFOS
Grundfos 98500187 - DTS 26GT 0004RTG0A0I | Dosing Tank Station | Modular | Compact
Sale price$1,020.83
Regular price$1,147.00
Save $127.38
GRUNDFOS
Grundfos 98500188 - DTS 26GT 0004RTH0A0I | Dosing Tank Station | Modular | Compact
Sale price$1,030.62
Regular price$1,158.00
Save $127.38
GRUNDFOS
Grundfos 98500189 - DTS 52GT 0004FVF0A0G | Dosing Tank Station | Modular | Compact
Sale price$1,030.62
Regular price$1,158.00
Save $127.60
GRUNDFOS
Grundfos 98500190 - DTS 52GT 0004FVG0A0G | Dosing Tank Station | Modular | Compact
Sale price$1,032.40
Regular price$1,160.00
Save $128.48
GRUNDFOS
Grundfos 98500191 - DTS 52GT 0004FVH0A0G | Dosing Tank Station | Modular | Compact
Sale price$1,039.52
Regular price$1,168.00
Save $135.63
GRUNDFOS
Grundfos 98500192 - DTS 52GT 0004RVF0A0G | Dosing Tank Station | Modular | Compact
Sale price$1,097.37
Regular price$1,233.00
Save $135.85
GRUNDFOS
Grundfos 98500193 - DTS 52GT 0004RVG0A0G | Dosing Tank Station | Modular | Compact
Sale price$1,099.15
Regular price$1,235.00
Save $136.84
GRUNDFOS
Grundfos 98500194 - DTS 52GT 0004RVH0A0G | Dosing Tank Station | Modular | Compact
Sale price$1,107.16
Regular price$1,244.00
Save $127.27
GRUNDFOS
Grundfos 98500195 - DTS 52GT 0004FEF0A0H | Dosing Tank Station | Modular | Compact
Sale price$1,029.73
Regular price$1,157.00
Save $127.38
GRUNDFOS
Grundfos 98500196 - DTS 52GT 0004FEG0A0H | Dosing Tank Station | Modular | Compact
Sale price$1,030.62
Regular price$1,158.00
Save $128.26
GRUNDFOS
Grundfos 98500197 - DTS 52GT 0004FEH0A0H | Dosing Tank Station | Modular | Compact
Sale price$1,037.74
Regular price$1,166.00
Save $135.30
GRUNDFOS
Grundfos 98500198 - DTS 52GT 0004REF0A0H | Dosing Tank Station | Modular | Compact
Sale price$1,094.70
Regular price$1,230.00
Save $135.85
GRUNDFOS
Grundfos 98500199 - DTS 52GT 0004REG0A0H | Dosing Tank Station | Modular | Compact
Sale price$1,099.15
Regular price$1,235.00
Save $136.73
GRUNDFOS
Grundfos 98500200 - DTS 52GT 0004REH0A0H | Dosing Tank Station | Modular | Compact
Sale price$1,106.27
Regular price$1,243.00
Save $138.16
GRUNDFOS
Grundfos 98500201 - DTS 52GT 0004FTF0A0I | Dosing Tank Station | Modular | Compact
Sale price$1,117.84
Regular price$1,256.00
Save $138.49
GRUNDFOS
Grundfos 98500202 - DTS 52GT 0004FTG0A0I | Dosing Tank Station | Modular | Compact
Sale price$1,120.51
Regular price$1,259.00
Save $139.59
GRUNDFOS
Grundfos 98500203 - DTS 52GT 0004FTH0A0I | Dosing Tank Station | Modular | Compact
Sale price$1,129.41
Regular price$1,269.00
Save $146.52
GRUNDFOS
Grundfos 98500204 - DTS 52GT 0004RTF0A0I | Dosing Tank Station | Modular | Compact
Sale price$1,185.48
Regular price$1,332.00
Save $146.74
GRUNDFOS
Grundfos 98500205 - DTS 52GT 0004RTG0A0I | Dosing Tank Station | Modular | Compact
Sale price$1,187.26
Regular price$1,334.00
Save $147.84
GRUNDFOS
Grundfos 98500206 - DTS 52GT 0004RTH0A0I | Dosing Tank Station | Modular | Compact
Sale price$1,196.16
Regular price$1,344.00
Save $140.47
GRUNDFOS
Grundfos 98500207 - DTS 79GT 0004FVF0A0G | Dosing Tank Station | Modular | Compact
Sale price$1,136.53
Regular price$1,277.00
Save $140.80
GRUNDFOS
Grundfos 98500208 - DTS 79GT 0004FVG0A0G | Dosing Tank Station | Modular | Compact
Sale price$1,139.20
Regular price$1,280.00