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Capacity
 Flow Range*
(mL/min)
 Flow Accuracy**
 Pressure Range
(psi, bar)		 Standard
Pressure Range
 Standard
Plumbing Ports
 Dimensions ​Continuous Flow Range ​(mL/min)
1000HLf
 1015 mL
 0.001–408
 0.5% of Setpoint
 10–2,000
0.7–137.9
 0.5% FS
 1/4” NPT
 40.3x10.7x18.4 in
102x27x47 cm		 0.01–265
500HLf
 507 mL
 0.001–204
 0.5% of Setpoint
 10–3750
0.7–258.6
 0.5% FS
 1/8” NPT 40.3x10.7x18.4 in
102x27x47 cm
 0.001–132
260HLf
 266 mL
 0.001–107
 0.5% of Setpoint
 10–7,500
0.7–517
 0.5% FS
 1/8” Valco 39.8x10.7x18.4 in
101x27x47 cm
 0.001–70
100HLf
 102 mL
 0.01 μL–60
 0.3% of Setpoint
 10–10,000
0.7–689.5
 0.5% FS
 1/8” Valco
 39.8x10.7x18.4 in
101x27x47 cm
 0.00001–16
​​* Maximum and minimum flows are dependent on optimizing your pump system. Consult a Teledyne ISCO Product Specialist to determine the best method for your application. For additional information, please consult the factory. Teledyne ISCO is continuously improving its products and reserves the right to change specifications without notice. All brand or product names mentioned herein are trademarks or registered trademarks of their respective holders.
** Flow rate accuracy are based on select conditions of fluid type, pressure and leakage rate.