GVS Filter, Disk, PTFE, Laminated, 0.22µm, 20x20cm, 5/PK 3026028

White, gridded 47 mm nitrocellulose (MCE/NC) membrane discs with 0.45 µm nominal pore size for microbiological and particulate analysis. These sterile, gridded filters are designed for colony recovery and counting, aqueous filtration, sterility and bioburden testing, and water/waste‑water analysis where visual contrast and reliable bacterial retention are required.

Key Features:

• Pore size: 0.45 µm
• Diameter: 47 mm
• Membrane material: Nitrocellulose / Mixed Cellulose Esters (MCE/NC)
• Color/format: White, gridded disc
• Packaging quantity: 100 per pack
• Autoclavable: 121°C

Advantages:

• Gridded surface provides clear reference lines to facilitate accurate colony counting.
• 0.45 µm pore size and MCE/NC construction support reliable bacterial retention and microbial recovery.
• White membrane color offers good visual contrast for organism detection and enumeration.
• Autoclavable construction allows for heat sterilization when required and supports laboratory sterility workflows.