Specifications
Specifications
Component List
All components listed below are included in this kit. Items marked Optional can be customized.
Request custom specs
| Component |
Standard Spec |
Upgrade Options |
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| Please contact us to confirm the available specifications. |
📌 Customization Notes:
• Frit grade options: G3, G4 (standard), G5 — choose based on particle size
• Funnel capacity is fixed at 15ml — for larger volumes, consider regular vacuum filtration
• Hand vacuum pump is standard — electric micro pumps are available as an alternative
• Mix and match — no minimum order quantity
• Special requirements? Just ask our technical team
💡 Recommended Add-Ons:
Micro centrifuge tubes (1.5ml/2ml) · Micro vials · Membranes (for compatible use)
Product Description
I. What is Micro Filtration
Micro filtration works on the same principle as regular vacuum filtration — vacuum pulls the liquid through, solids stay on top. The difference is: smaller apparatus, smaller samples, less dead volume. Regular vacuum filtration handles hundreds of milliliters and loses a few milliliters without concern — micro filtration deals with 0.1～5ml samples where every drop counts.
The funnel and flask are made small, tubing is short, and sample loss is minimized. Paired with a hand vacuum pump, there's no need for bulky pumps or power cords — you can use it in fume hoods, biosafety cabinets, or even laminar flow hoods.
✦ Micro vs Regular Vacuum Filtration:
Regular Vacuum Filtration: For 100ml+ samples — some loss is acceptable.
Micro Filtration: For 0.5～5ml samples — low dead volume, minimal loss.
Choose based on sample volume — precious, small samples → micro filtration.
If you have plenty of sample, regular filtration is fine.
II. What's in the Setup
- Micro Fritted Funnel — 15ml capacity, sintered glass frit, no filter paper needed
- Micro Filter Flask — 50ml capacity, heavy-wall design, side arm for vacuum
- Seal Ring / O-Ring — Ensures a tight seal between the funnel and flask
- Hand Vacuum Pump — Compact and lightweight, manually operated, no external power needed
- Silicone Tubing — Connects the flask to the vacuum pump
III. Choosing the Right Frit Grade
The micro fritted funnel uses a sintered glass frit with uniform pore size. Choose the right grade based on your sample's particle size:
- G3 Frit (16～30μm) — For routine precipitates, microsphere collection, larger particle removal
- G4 Frit (4～7μm) — Standard choice; for fine particles, protein complex clarification, cell debris removal
- G5 Frit (2～4μm) — For ultra-fine particles, larger bacteria removal, ultra-fine precipitates
If you're unsure, start with G4 — it works well for most micro filtration applications.
IV. Material & Workmanship
The micro fritted funnel and filter flask are made from borosilicate glass 3.3 — chemically resistant and transparent. The sintered frit is formed by high-temperature sintering of glass powder — uniform pores, durable, and non-shedding. The internal surfaces are smooth, connections are designed to minimize dead volume — this is the key difference between micro and regular filtration setups.
Manufactured to industry standards — you can count on it.
