Disposable In-Line Filters

Our Disposable In-Line Filters consist of permanently welded housings with encapsulated filter elements. This makes them ideal for portable analyzers and other analysis systems requiring a robust, easily replaceable filter. A choice of body materials makes them suitable for a wide range of chemical environments.

The economical DIF Series offers all the advantages of a microfiber filter element for high efficiency gas and liquid filtration, with the convenience of complete disposability. We have the ability to insert other filter media, such as PTFE or Stainless Steel Screens for course filtration.

A variety of barb/connection options are readily available from inventory. Keep in mind custom product can easily be built to order, regardless of quantity.

Please contact us directly for a comprehensive quick quote. No quantity is too small and turn-around is fast.

Features

  • Completely Disposable
  • Blue Transparent Nylon
  • Virgin Kynar Body
  • Four Sizes Available
  • Five Grades of Filtration
  • Two or Three Port Design
  • Filter Gases & Liquids

Applications

  • HVAC Purification
  • Analyzer & Sensor Protection
  • Low Cost Scrubbers
  • Last Chance Air Purifier
  • Zero Air Gas Calibration

Standard OEM Size with Microfiber Element (DIF-BN__) *add grade required
Our standard DIF-BN series is by far the most commonly used size of DIF since it combines high efficiency filtration with low pressure drops in a compact package. Whether being used in an OEM cabinet, emission bench, or air monitor this little gem is an economical workhorse.
Standard Grade: DIF-BN50 (99.99% @ 0.01 Micron) – Other Grades Available: 30, 40, 60, 70, 80

TECHNICAL INFORMATION

  • 1/4” Inlet / Outlet
  • 11.5cc of Volume
  • 230°F Maximum Temp. At 0 PSIG
  • 125 PSIG of Maximum Pressure at 110°F
  • 100% Grilamid TR 55 Blue Nylon body
  • Fluorocarbon Borosilicate Glass Microfiber Element
  • Standard Gas Flow at 100 PSIG is 4.2 SCFM

 

 

Standard OEM Size with Stainless Steel Screen (DIF-BN__SS) *add micron required
For applications where high efficiency microfiber elements are not necessary, we offer inexpensive Stainless Steel Screens which are commonly used in portable emission analyzers, bulk contaminate removal and liquid sampling.
For Portable Emission Analyzers use DIF-BN50SS. Other Micron Sizes Available: 05, 10, 25, 100

TECHNICAL INFORMATION

  • 1/4” Inlet / Outlet
  • 11.5cc of Volume
  • 230°F Maximum Temp. At 0 PSIG
  • 125 PSIG of Maximum Pressure at 110°F
  • 100% Grilamid TR 55 Blue Nylon body
  • 304 Stainless Steel Screen Element
  • Standard Gas Flow at 100 PSIG is 4.2 SCFM

 

 

 

Standard OEM Size w/1/8” Straight Barb (Short Spigot) (DIF-BN__SP-1/8”)
Our standard DIF-BN series is by far the most commonly used size of DIF since it combines high efficiency filtration with low pressure drops in a compact package. For applications with 1/8” tubing, using the same foot pattern and size, please specify DIF-BN50SP-1/8”.
Standard: DIF-BN50SP-1/8” (99.99% @ 0.01 Micron) – Other Grades Available: 30, 40, 60, 70, 80

TECHNICAL INFORMATION

  • 1/8” Tubing Connection on Inlet / Outlet
  • 11.5cc of Volume
  • 230°F Maximum Temp. At 0 PSIG
  • 125 PSIG of Maximum Pressure at 110°F
  • Material:
    • Body – 100% Grilamid TR 55 Blue Nylon
    • Straight Barb – Natural Nylon
  • Fluorocarbon Borosilicate Glass Microfiber Element
  • Standard Gas Flow at 100 PSIG is 4.2 SCFM

 

 

Standard OEM Size with 1/8” Elbow Barb (DIF-BN__-1/8”-90) *add micron required
Our standard DIF-BN series is by far the most commonly used size of DIF since it combines high efficiency filtration with low pressure drops in a compact package. This DIF is ideal for installations with restricted tubing connection space. Combinations of different size barbs are available upon request.
Standard Grade: DIF-BN50-1/8”-90 – Other Grades Available: 30, 40, 60, 70, 80

TECHNICAL INFORMATION

  • 1/8” Tubing Connection on Inlet / Outlet
  • 11.5cc of Volume
  • 230°F Maximum Temp. At 0 PSIG
  • 125 PSIG of Maximum Pressure at 110°F
  • Material:
    • Body – 100% Grilamid TR 55 Blue Nylon
    • Elbow Barb – White Nylon
  • Fluorocarbon Borosilicate Glass Microfiber Element
  • Standard Gas Flow at 100 PSIG is 4.2 SCFM

 

 

Standard OEM Size For Chemical Compatibility (DIF-BK__) *add grade required
This series of DIF assemblies is constructed of virgin white kynar for corrosive applications.
Compatible applications include (not limited to): sulfuric & hydrochloric acids, chlorine (gas or liquid), hydrogen peroxide, phenol, glycol, and ETO.
Standard Grade: DIF-BK50 (99.99% @ 0.01 Micron) – Other Grades Available: 30, 40, 60, 70, 80

TECHNICAL INFORMATION

  • 1/4” Inlet / Outlet
  • 11.5cc of Volume
  • 230°F Maximum Temp. At 0 PSIG
  • 125 PSIG of Maximum Pressure at 110°F
  • Virgin White Kynar body
  • Fluorocarbon Borosilicate Glass Microfiber Element
  • Standard Gas Flow at 100 PSIG is 4.2 SCFM

 

 

 

Indicating Standard OEM Size with (DIF-BN50I)
The DIF-BN50I contains a red dye that bleeds through the element to provide an accurate visual indication when oil is present. The red dye will permeate through the element upon oil saturation. One common application are HVAC control panels. This dye can be added to any of our microfiber elements.
Simply Order as DIF-BN50I.

TECHNICAL INFORMATION

  • 1/4” Inlet / Outlet
  • 11.5cc of Volume
  • 230°F Maximum Temp. At 0 PSIG
  • 125 PSIG of Maximum Pressure at 110°F
  • 100% Grilamid TR 55 Blue Nylon body
  • Fluorocarbon Borosilicate Glass Microfiber Element
  • Standard Gas Flow at 100 PSIG is 4.2 SCFM

 

 

 

Miniature OEM Size with Microfiber Element (DIF-MN__) *add grade required
The DIF-MN, mini DIF was designed specifically as a final last chance filter for critical equipment with a small footprint. They are ideally used for HVAC / Pneumatic temperature control protection.
Standard Grade: DIF-MN50 (99.99% @ 0.01 Micron) – Other Grades Available: 30, 40, 60, 70, 80

TECHNICAL INFORMATION

  • 1/4” Inlet / Outlet
  • 6cc of Volume
  • 230°F Maximum Temp. At 0 PSIG
  • 125 PSIG of Maximum Pressure at 110°F
  • 100% Grilamid TR 55 Blue Nylon body
  • Fluorocarbon Borosilicate Glass Microfiber Element
  • Standard Gas Flow at 100 PSIG is 2.1 SCFM

 

 

Miniature OEM Size with 1/8” Straight Barb (DIF-MN__1/8”) *add grade required
Our mini DIF was designed specifically as a final last chance filter for critical equipment with a small footprint and 1/8”ID tubing. They are ideally used for HVAC/Pneumatic temperature control protection.
Standard: DIF-MN50-1/8” (99.99% @ 0.01 Micron) – Other Grades Available: 30, 40, 60, 70, 80

TECHNICAL INFORMATION

  • 1/8” Tubing Connection on Inlet / Outlet
  • 6cc of Volume
  • 230°F Maximum Temp. At 0 PSIG
  • 125 PSIG of Maximum Pressure at 110°F
  • Material:
    • Body – 100% Grilamid TR 55 Blue Nylon
    • Straight Barb – White Nylon
  • Fluorocarbon Borosilicate Glass Microfiber Element
  • Standard Gas Flow at 100 PSIG is 2.1 SCFM

 

 

Miniature OEM Size with 1/8” Elbow Barb (DIF-MN__-1/8”-90) *add grade required
Our mini DIF was designed specifically as a final last chance filter for critical equipment needing a small footprint and 1/8”ID tubing at a 90° angle. Ideally used for HVAC/Pneumatic temperature control protection.
Standard Grade: DIF-MN50-1/8”-90 (99.99% @ 0.01 Micron) – Other Grades Available: 30, 40, 60, 70, 80

TECHNICAL INFORMATION

  • 1/8” Tubing Connection on Inlet / Outlet
  • 6cc of Volume
  • 230°F Maximum Temp. At 0 PSIG
  • 125 PSIG of Maximum Pressure at 110°F
  • Material:
    • Body – 100% Grilamid TR 55 Blue Nylon
    • Elbow Barb – White Nylon
  • Fluorocarbon Borosilicate Glass Microfiber Element
  • Standard Gas Flow at 100 PSIG is 2.1 SCFM

 

Intermediate OEM High Flow DIF w/ Microfiber Element (DIF-IN__) *add grade required
Our intermediate range is utilized where higher particulate holding capacity is required.
Standard Grade: DIF-IN50 (99.99% @ 0.01 Micron) – Other Grades Available: 30, 40, 60, 70, 80

TECHNICAL INFORMATION

  • 1/4” Inlet / Outlet
  • 50cc of Volume
  • 230°F Maximum Temp. At 0 PSIG
  • 100 PSIG of Maximum Pressure at 110°F
  • 100% Grilamid TR 55 Blue Nylon body
  • Fluorocarbon Borosilicate Glass Microfiber Element
  • Standard Gas Flow at 100 PSIG is 10.0 SCFM

 

 

Intermediate OEM High Flow DIF with SS Screen (DIF-IN__SS) *add micron required
For applications where high efficiency microfiber elements are not necessary, we offer inexpensive Stainless Steel Screens which are commonly used in portable emission analyzers, bulk contaminate removal and liquid sampling.
For Portable Emission Analyzers use DIF-BN50SS – Other Micron Sizes Available: 05, 10, 25, 100

TECHNICAL INFORMATION

  • 1/4” Inlet / Outlet
  • 50cc of Volume
  • 230°F Maximum Temp. At 0 PSIG
  • 100 PSIG of Maximum Pressure at 110°F
  • 100% Grilamid TR 55 Blue Nylon body
  • 304 Stainless Steel Screen Element
  • Standard Gas Flow at 100 PSIG is 10.0 SCFM

 

 

 

Intermediate OEM High Flow Coalescing DIF (DIF-IN__C) *add grade required
Our intermediate DIF with 3rd spigot is utilized when coalescing (liquid removal) is required.
Standard Grade: DIF-IN50C (99.99% @ 0.01 Micron) – Other Grades Available: 30, 40, 60, 70, 80

TECHNICAL INFORMATION

  • 1/4” Inlet , Outlet, and Drain Port
  • 50cc of Volume
  • 230°F Maximum Temp. At 0 PSIG
  • 100 PSIG of Maximum Pressure at 110°F
  • 100% Grilamid TR 55 Blue Nylon body
  • Fluorocarbon Borosilicate Glass Microfiber Element
  • Standard Gas Flow at 100 PSIG is 10.0 SCFM

 

 

Large OEM Maximum Flow DIF w/ Microfiber Element (DIF-LN__) *add grade required
Our largest DIF is commonly specified where extreme amounts of particulate is present or for remote sites. Typical applications include ambient air monitoring.
Standard Grade: DIF-LN60 (99.5% @ 0.01 Micron) – Other Grades Available: 30, 40, 50, 70, 80

TECHNICAL INFORMATION

  • 1/4” NPT Inlet / Outlet or 1/2” Slip On Connection
  • 120cc of Volume
  • 230°F Maximum Temp. At 0 PSIG
  • 100 PSIG of Maximum Pressure at 110°F
  • 100% Grilamid TR 55 Blue Nylon body
  • Fluorocarbon Borosilicate Glass Microfiber Element
  • Standard Gas Flow at 100 PSIG is 17.0 SCFM

 

 

 

Large OEM Maximum Flow DIF with SS Screen (DIF-LN__SS-1/4”) *add micron required
For applications where high efficiency microfiber elements are not necessary, we offer inexpensive Stainless Steel Screens which are commonly used in liquid sampling and pump protection.
For Liquid Sampling use DIF-LN50SS-1/4” – Other Micron Sizes Available: 05, 10, 25, 100

TECHNICAL INFORMATION

  • 1/4” NPT Inlet / Outlet or 1/2” Slip On Connection
  • 120cc of Volume
  • 230°F Maximum Temp. At 0 PSIG
  • 100 PSIG of Maximum Pressure at 110°F
  • 100% Grilamid TR 55 Blue Nylon body
  • 304 Stainless Steel Screen Element
  • Standard Gas Flow at 100 PSIG is 17.0 SCFM

 

 

 

Large OEM Maximum Flow Coalescing DIF (DIF-LN__C) *add grade required
Our intermediate DIF with 3rd spigot is utilized when coalescing (liquid removal) is required.
Standard Grade: DIF-LN60C (99.5% @ 0.01 Micron) – Other Grades Available: 30, 40, 50, 70, 80

TECHNICAL INFORMATION

  • 1/4” NPT Inlet / Outlet or 1/2” Slip On Connection
  • 1/4” Drain Port
  • 120cc of Volume
  • 230°F Maximum Temp. At 0 PSIG
  • 100 PSIG of Maximum Pressure at 110°F
  • 100% Grilamid TR 55 Blue Nylon body
  • Fluorocarbon Borosilicate Glass Microfiber Element
  • Standard Gas Flow at 100 PSIG is 17.0 SCFM

 

 

 

Large OEM Maximum Flow DIF for Chemical Compatibility (DIF-LK__) *add grade required
The DIF-LK assemblies are constructed of black kynar for corrosive applications. Compatible applications include (not limited to): sulfuric & hydrochloric acids, chlorine (gas or liquid), hydrogen peroxide, Etc.
Standard Grade: DIF-LK60 (99.5% @ 0.01 Micron) – Other Grades Available: 30, 40, 50, 70, 80

TECHNICAL INFORMATION

  • 1/4” NPT Inlet / Outlet or 1/2” Slip On Connection
  • 120cc of Volume
  • 230°F Maximum Temp. At 0 PSIG
  • 100 PSIG of Maximum Pressure at 110°F
  • Black Kynar body
  • Fluorocarbon Borosilicate Glass Microfiber Element
  • Standard Gas Flow at 100 PSIG is 17.0 SCFM

 

 

Large Maximum Flow DIF for Chemical Compatibility (DIF-LK__PT) *add micron required
The DIF-LK assemblies are constructed of black kynar for corrosive applications. Compatible applications include (not limited to): sulfuric & hydrochloric acids, chlorine (gas or liquid), hydrogen peroxide, Etc.
Standard Grade: DIF-LK25PT – Other Micron Available: 03PT

TECHNICAL INFORMATION

  • 1/4” NPT Inlet / Outlet or 1/2” Slip On Connection
  • 120cc of Volume
  • 230°F Maximum Temp. At 0 PSIG
  • 100 PSIG of Maximum Pressure at 110°F
  • Black Kynar body
  • Teflon (PTFE) Element
  • Standard Gas Flow at 100 PSIG is 17.0 SCFM

 

 

Large OEM High Flow DIF with 1/4” Push Connect Fitting (DIF-LN__-1/4”PTC)
This DIF is specified where extreme amounts of particulate is present and can easily replace the DIF-BN series. The filter comes complete with 1/4” push connect adapters (PTC).
Standard Grade: DIF-LN60-1/4”PTC (99.5% @ 0.01 Micron) – Other Grades Available: 30, 40, 50, 70, 80

TECHNICAL INFORMATION

  • 1/4” Push Connect Fitting
  • 120cc of Volume
  • 230°F Maximum Temp. At 0 PSIG
  • 100 PSIG of Maximum Pressure at 110°F
  • 100% Grilamid TR 55 Blue Nylon body
  • Fluorocarbon Borosilicate Glass Microfiber Element
  • Standard Gas Flow at 100 PSIG is 17.0 SCFM

 

Disposable In-Line Filters – Flow Rate Charts

 

GAS FLOW RATES – DIF-MN□ (12-16-□) – MINI
DIF Model NumberFiltration Efficiency
Removal Of 0.01
Micron Particles
Gas Flow In SCFM At Stated PSIG With 1.5 PSID
1.520406080100125
DIF-MN3099.99998+%0.1
0.2
0.3
0.4
0.5
0.6
0.7
DIF-MN4099.9999+%0.15
0.3
0.5
0.7
0.8
1.0
1.2
DIF-MN50
99.99+%
0.3
0.6
1.0
1.0
1.7
2.1
2.8
DIF-MN6099.5+%
0.4
1.0
1.6
2.1
2.7
3.4
4.1
DIF-MN70
95.0+%
0.5
1.1
1.8
2.4
3.0
3.7
4.7
DIF-MN8075.0+%0.91.32.02.73.54.35.0
LIQUID FLOW RATES (12-16-□) - MINI
DIF Model NumberFiltration Efficiency
98% Removal Rating
Water Flow Rates with 1.5 PSID
DIF-MN30
0.3 micron
0.6 GPH / 0.04 LPM
DIF-MN40
1 micron
1.6 GPH / 0.12 LPM
DIF-MN50
2 micron
3.3 GPH / 0.25 LPM
DIF-MN60
8 micron6.5 GPH / 0.49 LPM
DIF-MN7025 micron8.0 GPH / 0.60 LPM
DIF-MN8075 micron8.5 GPH / 0.64 LPM
GAS FLOW RATES – DIF-BN□ (12-32-□) – STANDARD
DIF Model NumberFiltration Efficiency
Removal Of 0.01
Micron Particles
Gas Flow In SCFM At Stated PSIG With 1.5 PSID
1.520406080100125
DIF-BN30 or BK3099.99998+%
0.2
0.4
0.6
0.8
1.0
1.3
1.5
DIF-BN40 or BK40
99.9999+%0.30.7
1.01.41.72.12.5
DIF-BN50 or BK50
99.99+%
0.6
1.3
2.0
2.7
3.5
4.2
5.7
DIF-BN60 or BK6099.5+%
0.92.03.24.35.46.98.2
DIF-BN70 or BK70
95.0+%
1.12.33.64.96.07.59.4
DIF-BN80 or BK8075.0+%1.22.64.05.57.08.610.0
LIQUID FLOW RATES (12-16-□) - MINI
DIF Model NumberFiltration Efficiency
98% Removal Rating
Water Flow Rates with 1.5 PSID
DIF-BN30 or BK30
0.3 micron
1.3 GPH / 0.10 LPM
DIF-BN40 or BK40
1 micron
3.2 GPH / 0.24 LPM
DIF-BN50 or BK50
2 micron
6.6 GPH / 0.50 LPM
DIF-BN60 or BK608 micron13.0 GPH / 0.98 LPM
DIF-BN70 or BK70
25 micron
16.0 GPH / 1.21 LPM
DIF-BN80 or BK8075 micron17.0 GPH / 1.29 LPM
GAS FLOW RATES – DIF-IN□ (12-57-□) – INTERMEDIATE
DIF Model NumberFiltration Efficiency
Removal Of 0.01
Micron Particles
Gas Flow In SCFM At Stated PSIG With 1.5 PSID
1.520406080100
DIF-IN30
99.99998+%0.40.70.91.01.52.0
DIF-IN40
99.9999+%
0.7
1.7
2.7
3.3
4.1
5.0
DIF-IN50
99.99+%1.53.45.36.68.310.0
DIF-IN60
99.5+%3.07.011.214.017.521.0
DIF-IN70
95.0+%
3.6
8.4
13.5
17.0
21.5
26.0
DIF-IN8075.0+%4.09.315.019.024.029.0
LIQUID FLOW RATES – (12-57-□) - INTERMEDIATE
DIF Model NumberFiltration Efficiency
98% Removal Rating
Water Flow Rates with 1.5 PSID
DIF-IN30
0.3 micron
2.6 GPH / 0.19 LPM
DIF-IN40
1 micron
6.4 GPH / 0.48 LPM
DIF-IN50
2 micron13.2 GPH / 1.00 LPM
DIF-IN60
8 micron26.0 GPH / 1.97 LPM
DIF-IN70
25 micron
32.0 GPH / 2.42 LPM
DIF-IN8075 micron34.0 GPH / 2.57 LPM
GAS FLOW RATES – DIF-LN□ (25-64-□) – LARGE
DIF Model NumberFiltration Efficiency
Removal Of 0.01
Micron Particles
Gas Flow In SCFM At Stated PSIG With 1.5 PSID
1.520406080100
DIF-LN30 or LK3099.99998+%0.71.52.5
3.2
4.15.1
DIF-LN40 or LK40
99.9999+%
1.2
2.6
4.05.5
7.2
8.0
DIF-LN50 or LK50
99.99+%2.45.17.911.014.017.0
DIF-LN60 or LK6099.5+%3.88.3
13.0
17.0
22.026.0
DIF-LN70 or LK7095.0+%4.3
9.314.019.024.030.0
DIF-LN80 or LK8075.0+%4.710.016.022.027.034.0
LIQUID FLOW RATES – (25-64-□) - LARGE
DIF Model NumberFiltration Efficiency
98% Removal Rating
Water Flow Rates with 1.5 PSID
DIF-LN30 or LK300.3 micron13.0 GPH / 0.98 LPM
DIF-LN40 or LK401 micron26.0 GPH / 19.7 LPM
DIF-LN50 or LK50
2 micron62.0 GPH / 4.70 LPM
DIF-LN60 or LK608 micron84.0 GPH / 6.36 LPM
DIF-LN70 or LK7025 micron95.0 GPH / 7.20 LPM
DIF-LN80 or LK8075 micron118.0 GPH / 8.94 LPM