This product appears in the ERE Air Catalogue 2025
Overview
Gravimetric analysis samples require filters to be weighed both before and after sampling to determine the amount of contaminate collected. Zefon® match-weighed cassettes eliminate the need of weighing filters before sampling by providing two filters which are matched in weight. The top filter collects particulate and the bottom filter serves as a control. After sampling, both filters are weighed and the difference in weight equals the amount of contaminate collected.
Features
• Each cassette labeled with serial number
• Color coded to indicate filter type
• Preloaded - ready to use
*Limited shelf life
Compare models
Your selection is highlighted. Select a row to switch.| Part Number | Filter | Diameter | Pore Size | Housing Style | Band Color | Weight Tolerance | Quantity |
| ZE-5M92M | MCE | 25 mm | 0.8 μm | 2-Piece Styrene | Blue | 25 mm | 50/Box |
| ZE-5M93M | MCE | 25 mm | 0.8 μm | 3-Piece Styrene | Blue | 25 mm | 50/Box |
| ZE-7M92M | MCE | 37 mm | 0.8 μm | 2-Piece Styrene | Blue | 37 mm | 50/Box |
| ZE-7M92M-R-SB | MCE | 37 mm | 0.8 μm | 2-Piece Styrene | Blue | 37 mm | 50/Box |
| ZE-7M92M-TN | MCE | 37 mm | 0.8 μm | 2-Piece Tenite, Meets Requirement Of ASTM D2276 | Blue With Security Band | 37 mm | 50/Box |
| ZE-7M93M | MCE | 37 mm | 0.8 μm | 3-Piece Styrene | None | 37 mm | 50/Box |
| ZE-5M52P | PVC | 25 mm | 5.0 μm | 2-Piece Styrene | Red | 25 mm | 50/Box |
| ZE-5M53P | PVC | 25 mm | 5.0 μm | 3-Piece Styrene | Red | 25 mm | 50/Box |
| ZE-7M52P | PVC | 37 mm | 5.0 μm | 2-Piece Styrene | Red | 37 mm | 50/Box |
| ZE-7M53P | PVC | 37 mm | 5.0 μm | 3-Piece Styrene | Red | 37 mm | 50/Box |
Documents
Questions, answered
How fast will I get a price?
Send the quote request and a specialist replies within 4 business hours, Monday to Friday, 8:00 to 4:30 ET.
Can we pay on account or by purchase order?
Yes. With established credit, terms are Net 30 days, and you can send your purchase order with the quote request. We also accept Visa, Mastercard and American Express.
How is shipping charged?
On quotes and account orders, freight is F.O.B. Montréal: the carrier charge is worked out at shipment from the packed weight and dimensions, and added to your invoice. In-stock items can also be picked up the same day in Montréal (8605 rue du Champ-d'Eau).
Can I return it?
Yes, within 30 days of purchase, with a return authorization number from customer service first. A 25% restocking fee applies, unless it is a defect covered by the warranty. Special orders, hazardous materials, flammable liquids and gases can't be returned. Return policy
Related equipment we stock

Zefon® Via-Cell® Bioaerosol Sampling Cassettes
10/Box

Micro5 Posi-Track Full Slide Indoor Air Quality Impactor Cassettes
5 LPM flow rate | D50 <1.0 µm | 1×3 in. barcoded POSI-TRACK slide | 24 cassettes/box | Sampling time 1–10 min

Micro5 MicroCell IAQ Air Sampling Cassettes
50/Box

Allergenco-D Posi-Track Full Slide Indoor Air Quality Impactor Cassettes
24/Box