McKesson IV Extension Set, Standard Bore 9-inch Tubing, 1.2 Micron Filter

A sterile 9-inch IV extension set with built-in 1.2-micron filter — designed for clinicians who need particulate filtration during infusions of medications that are sensitive to or generate small precipitates.

Not every infusion needs the sub-bacterial 0.2-micron filtration. The 1.2-micron filter strikes a balance: it captures particulates and microorganisms larger than 1.2 μm while maintaining higher flow rates and lower priming volume than tighter filters. The McKesson MS421 combines a 9-inch standard-bore extension tubing with this 1.2-micron filter in a single sterile package — convenient for clinicians and pharmacies stocking filtered IV lines.

Key Benefits

• Built-in 1.2-μm filter protects against particulates and microorganisms larger than 1.2 μm
• 9-inch standard-bore tubing — optimal reach with manageable priming volume
• Sterile single-use packaging — ready for immediate clinical use
• Compatible with most IV setups and infusion pumps
• Higher flow than 0.2-μm setups when sub-bacterial filtration is not required

Features & Design

• Standard bore IV extension tubing
• 9-inch tubing length
• Built-in 1.2 μm filter
• Without injection port
• Male/female Luer Lock connections
• Sterile, single-use

Specifications

Ideal For

• Infusions requiring particulate filtration but not sub-bacterial filtration
• Hospitals, infusion centers, home infusion
• Lipid infusions and other higher-viscosity medications where 0.2 μm would clog
• Pharmacy compounding workflows

Important Note

For use by qualified medical professionals only. Verify medication-filter compatibility before use — consult manufacturer guidelines or pharmacy. For applications requiring sub-bacterial filtration, use 0.2-μm extension sets (see our MS422 product). Single-use, sterile — do not resterilize.

Care & Compatibility

Store in original sterile packaging at room temperature. Inspect packaging integrity before use. Compatible with standard Luer Lock IV setups.

Available Options

Select your preferred option from the dropdown above. Each option matches the configuration described in this section.