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SAMPLE HANDLING | AIR SAMPLING
Passive Air Sampling Kits
Use these orifices with a Veriflo® 423XL flow controller to change the flow range for
alternative sampling times.
Replacement Orifices
24249
24170
24171
24262
24266
26209
26211
Stock up or buy only the parts you need now!
For use in critical orifice fitting. Includes washers.
2 µm Frit Filters
Siltek Treated Stainless Steel
Description qty. cat.# price cat.# price
Replacement Frit Filter 3-pk. 24171 24170
Note: frit is not replaceable.
This 316 stainless steel filter is designed to collect particles larger than 7 microns. We
offer Siltek®-treated and stainless steel versions (1/4" compression fitting on both ends).
7 µm In-Line Filter
Siltek Treated Stainless Steel
Description qty. cat.# price cat.# price
7 µm In-Line Filter ea. 24265 24266
• Inlets have 1/ 4" stainless steel compression fitting on each end.
• One end connects to flow controller or canister; nut on other end serves as
rain guard.
• Includes nuts and ferrules.
• Two different lengths for use with large canisters and miniature canisters.
Sample Inlets
Siltek Treated Stainless Steel
Description qty. cat.# price cat.# price
Sample Inlet, 6" Length ea. 26210 26209
Sample Inlet, 1.5" Length ea. 26212 26211
Orifice Siltek Treated Stainless Steel
Description Flow Size cat.# price cat.# price
Replacement Orifice 0.5–2 mL/min 0.0008" 24219 24218
Replacement Orifice 2–4 mL/min 0.0012" 24233 24245
Replacement Orifice 4–8 mL/min 0.0016" 24234 24246
Replacement Orifice 8–15 mL/min 0.0020" 24235 24247
Replacement Orifice 15–30 mL/min 0.0030" 24236 24248
Replacement Orifice 30–80 mL/min 0.0060" 24237 24249
Replacement Orifice 80–340 mL/min 0.0090" 22099 22098
Veriflo® 423XL flow controllers are offered in a Siltek®-treated and stainless steel ver-
sion. The flow device is available with or without a critical orifice. (Vacuum gauge sold
separately.)
The critical orifice in a Veriflo® flow controller is interchangeable. Order orifices for
alternate sampling times, or replacement orifices, separately.
Veriflo® Flow Controllers
Orifice Siltek Treated Stainless Steel
Description Flow Size cat.# price cat.# price
Veriflo Flow Controller 0.5–2 mL/min 0.0008" 24232 24229
Veriflo Flow Controller 2–4 mL/min 0.0012" 24255 24260
Veriflo Flow Controller 4–8 mL/min 0.0016" 24256 24261
Veriflo Flow Controller 8–15 mL/min 0.0020" 24257 24262
Veriflo Flow Controller 15–30 mL/min 0.0030" 24258 24263
Veriflo Flow Controller 30–80 mL/min 0.0060" 24259 24264
Veriflo Flow Controller 80–340 mL/min 0.0090" 22103 22102
Veriflo Flow Controller — without orifice 24238 24239