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ZF-ZSL2 – 17mm PTFE Syringe Filter with Luer Lock (0.2μm/0.3μm)
In high-stakes labs, sample purity dictates outcomes. The ZF-ZSL2 is a consumable that quietly absorbs the cost of error — and its specifications reveal more than just pore size.
The ZF-ZSL2 is a 17mm syringe filter built around a hydrophobic PTFE membrane, housed in medical-grade ABS. It is available in two pore sizes — 0.2μm and 0.3μm — and terminates in Luer Lock connections. The unit weighs 1.5 grams and carries a shelf life of three years.
PTFE membranes are the standard for aggressive organic solvents, strong acids, and gas filtration. The 0.2μm variant is the go-to for sterilizing HPLC mobile phases; the 0.3μm version tolerates slightly higher throughput where absolute sterility is not required. Both protect expensive columns from particulate damage.
The filter is manufactured in Rizhao City, China, under ISO-accredited conditions, and holds CE certification. The stated daily production capacity — 20,000 units — points to a facility scaled for bulk OEM and contract work, not artisanal batches.
Zhenfu’s willingness to offer complimentary samples and enforce no minimum order quantity reveals a procurement strategy designed for low-friction entry. In a market where consumables are often locked into proprietary supply chains, this model favors open, scalable replacement.
China’s lab consumables sector has long been fragmented. A product like the ZF-ZSL2 — technically competent, CE-approved, and aggressively priced — signals a maturation phase. The production volume and compliance infrastructure suggest a manufacturer ready to serve both domestic and export markets with consistent quality.
For lab managers, the real insight is not in the membrane, but in the logistics. A 1.5g consumable with a three-year shelf life and no MOQ reduces inventory risk and simplifies procurement across decentralized operations.
It is a small product with a large systems footprint — the kind of item that makes standardised lab workflows possible at scale.
Why it matters:
The ZF-ZSL2 represents a shift in China’s lab consumables sector toward ISO-standard production and flexible procurement. For labs facing solvent filtration demands, it removes the friction of proprietary sourcing without compromising compliance.
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