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Laboratory Pump Selection Guide: Filtration, Degassing, Blotting, Desiccation, Solid-Phase Extraction
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Pumps for Filtration, Degassing, Blotting, Desiccation and Solid-Phase Extraction
Click here for our Laboratory Pump Sizing Guide:

Need a compact, lightweight pump for small tasks?

These convenient KNF filtration pumps are oil-free, lightweight and easy to use for your disposable bottletop and flask filtration, vacuum manifold, blotting and desiccation applications. Stop polluting drinking water and replace that water aspirator now.

KNF filtration pumps are available with or without a gauge package.
Filtration Pump Selection Guide
Disposable Bottletop Filtration Units: For sterilizing tissue culture media, microbiological media, and other biological solutions. Bottletop Filtration Units
Pump Model
(click on link for datasheet) 		Flow Rate End Vacuum Regulator/Gauge Pkg
UN86KT.45P 5.5 LPM 120 Torr (25.2"Hg) Vacuum
UN86KTP 5.5 LPM 120 Torr (25.2"Hg) None
UN811KV.45P 13 LPM 75 Torr (27"Hg) Vacuum
UN811KVP 13 LPM 75 Torr (27"Hg) None
Disposable Filtration Assemblies: For sterilizing tissue culture media, microbiological media, and other biological solutions. Disposable Filtration Assemblies
Pump Model
(click on link for datasheet) 		Flow Rate End Vacuum Regulator/Gauge Pkg
UN86KT.45P 5.5 LPM 120 Torr (25.2 "Hg) Vacuum
UN86KTP 5.5 LPM 120 Torr (25.2 "Hg) None
UN811KV.45P 13 LPM 75 Torr (27 "Hg) Vacuum
UN811KVP 13 LPM 75 Torr (27 "Hg) None
Manifold Filtration: For multiple sample (3 and 6 place) sterility testing of antibiotics and pharmaceuticals by bacteria retentive method and for routine microbiological filtrations. Because of the potentially large volumes of liquid used with vacuum manifolds, a liquid pre-trap is recommended. Manifold Filtration
Pump Model
(click on link for datasheet) 		Flow Rate End Vacuum Regulator/Gauge Pkg
UN816.1.2KT.45P 30 LPM 120 (25.2 "Hg) Vacuum
UN816.1.2KTP 30 LPM 120 Torr (25.2 "Hg) None
UN838.1.2KT.45P 37 LPM 113 Torr (25.7 "Hg) Vacuum
UN838.1.2KTP 37 LPM 113 Torr (25.7 "Hg) None
Glass Filtration Assemblies: For filtration of aqueous, organic or corrosive liquids for particulate contamination analysis and for HPLC solvent filtration or solid-phase extraction.
Pump Model
(click on link for datasheet) 		Flow Rate End Vacuum Regulator/Gauge Pkg
UN811KV.45P 13 LPM 75 Torr (27 "Hg) Vacuum
UN811KVP 13 LPM 75 Torr (27 "Hg) None
UN816.1.2KT.45P 30 LPM 120 Torr (25.2 "Hg) Vacuum
UN816.1.2KTP 30 LPM 120 Torr (25.2 "Hg) None
Solvent Filtration and Degassing: For transferring solvents directly from the reagent bottle while removing particulate from HPLC mobile phase. Once the filtration is complete, the sample can then be degassed in the same vessel. Solvent Filtration & Degassing
Pump Model
(click on link for datasheet) 		Flow Rate End Vacuum Regulator/Gauge Pkg
UN816.3KT.45P 16 LPM 15 Torr (29.3 "Hg) Vacuum
UN816.3KTP 16 LPM 15 Torr (29.3 "Hg) None
UN838.3KT.45P 22 LPM 11 Torr (29.5 "Hg) Vacuum
UN838.3KTP 22 LPM 11 Torr (29.5 "Hg) None
Desiccation: For use in the removal of moisture in a sample preparation step or as an anaerobic culture jar in bacteriological work.
Pump Model
(click on link for datasheet) 		End Vacuum Regulator/Gauge Pkg
UN816.3KT.45P 16 LPM 15 Torr (29.3 "Hg) Vacuum
UN816.3KTP 16 LPM 15 Torr (29.3 "Hg) None
Pressure Filtration Applications Pressure Filt
Pump Model
(click on link for datasheet) 		Flow Rate Max Pressure Regulator/Gauge Pkg
UN86KT.46P 5.5 LPM 35 psig Pressure
UN86KTP 5.5 LPM 35 psig None
KNF diaphragm pumps
Complete List of Filtration Pumps
Pump Model
(click on link for datasheet)		 Flow Rate End Vacuum Max Pressure Gauge Pkg Materials
UN86KTP 5.5 LPM 120 Torr (25.2 "Hg) 35 psig None PPS/PTFE/FFPM
UN86KT.45P 5.5 LPM 120 Torr (25.2 "Hg) 35 psig Vacuum PPS/PTFE/FFPM
UN86KT.46P 5.5 LPM 120 Torr (25.2 "Hg) 35 psig Pressure PPS/PTFE/FFPM
UN811KVP 13 LPM 75 Torr (27 "Hg) 15 psig None PPS/EPDM
UN811KV.45P 13 LPM 75 Torr (28 "Hg) 15 psig Vacuum PPS/PTFE/FPM
UN811KV.46P 13 LPM 75 Torr (28 "Hg) 15 psig Pressure PPS/PTFE/FPM
UN816.3KTP 16 LPM 15 Torr (29.3 "Hg) 7.4 psig None PPS/PTFE/FFPM
UN816.3KT.45P 16 LPM 15 Torr (29.3 "Hg) 7.4 psig Vacuum PPS/PTFE/FFPM
UN816.1.2KTP 30 LPM 120 Torr (25.2 "Hg) 7.4 psig None PPS/PTFE/FFPM
UN838.3KT.45P 22 LPM 11 Torr (29.5 "Hg) 7.4 psig Vacuum PPS/PTFE/FFPM
UN838.3KTP 22 LPM 11 Torr (29.5 "Hg) 7.4 psig None PPS/PTFE/FFPM
UN816.1.2KT.45P 30 LPM 120 Torr (25.2 "Hg) 7.4 psig Vacuum PPS/PTFE/FFPM
UN838.1.2KT.45P 37 LPM 113 Torr (25.5 "Hg) 7.4 psig Vacuum PPS/PTFE/FFPM
UN838.1.2KTP 37 LPM 113 Torr (25.5 "Hg) 7.4 psig None PPS/PTFE/FFPM

Unit Conversion Tools:

Chemical Resistance Chart: Chemical Resistance Chart

NOTES: Standard continuous performance ratings listed on this KNF website and on KNF datasheets are based on technical data and test results of nominal units at sea level, measured with an ambient temperature of 70°F (21°C), and nominal electrical supply as listed above, and are for reference only.Multiple-head models, different performance models, cost-effective OEM modifications, and a variety of motor options and different materials of construction are also available. Certified drawings are available upon request. Specifications subject to change without notice. You should always check corrosion resistance charts for compatibility with the medium you intend to pump.
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