25 mm Air Monitoring Cassettes

Conductive, Non-Static Cowl Prevents
Adherence of Particles to Cassette
Walls for More Accurate Analysis

• 0.8 μm GN-4 Metricel® membrane has a low fiber background count. It is widely accepted for air monitoring of fibers, asbestos fibers, and metals.
• Leak proof and tamper proof. Banded cassettes ensure air-tight seal for critical applications.
• Available unassembled for costeffective monitoring with a variety of Pall membranes.

• GN-4 Metricel® membrane meets fiber count and background requirements to comply with NIOSH Methods 7400 and 7402.
• Cassettes can be used to monitor respirable constituents such as silica, metal, and dusts.

Materials of Construction

• Filter Media: GN-4 Metricel membrane (mixed cellulose esters) with cellulose support pad
• Housing: Carbon-filled polypropylene

Effective Filtration Area

• 3.85 cm²

Dimensions

• Overall Length [Includes 5 cm (2 in.)
• Extension: 7.9 cm (3.1 in.)
• Diameter: 2.8 cm (1.1 in.)

Filter Size

• 25 mm

Inlet/Outlet Connections

• Luer-type female inlet, female luer built-in hose adapter outlet

Operating Temperature

• Ambient

Air Monitoring Membranes:

• Glass Fiber Filters
• DM Metricel® Membrane Disc Filters
• GLA-5000 PVC Membrane Disc Filters
• GN-4 Metricel® Membrane Disc Filters
• Nylasorb™ Nylon Membrane Disc Filters
• Pallflex® Air Monitoring Filters
• Teflo Membrane Disc Filters
• Zefluor™ Membrane Disc Filters
• Zylon™ Membrane Disc Filters 
• Analyslide® Petri Dish
• Stainless Steel Forceps

Part Number	Description	Pkg	Price	Qty
Air Monitoring Cassettes, 25 mm
4375	Three-piece unit with GN-4 Metricel membrane and support pad	50/pkg	156.17
4382	Three-piece unit with GN-4 Metricel membrane and support pad, banded	50/pkg	181.03
4376	Three-piece unit, unassembled	50/pkg	137.41
Accessory Product
66238	25 mm support pads, non-sterile	100/pkg	39.32

Contact Customer Service at 800-521-1520 for possible lead-time and ship date.