The Ultrafilter PF-N6DL is the direct equivalent for the configurations listed below. Nylon 6,6 membrane, double layer, positive zeta.
What it is: 0.2 µm single-layer covalent charge-modified Nylon 6,6 membrane. Validated sterilizing-grade per modified ASTM F838-83 (B. diminuta retention ≥10⁷ CFU/cm²). Membrane positive charge functional pH 3–10. Pharma version with factory Certificate of Test.
Use for: Sterile filtration where additional retention of fine sub-micron contaminants is needed: endotoxin reduction (>99.997% to 0.16 g E. coli endotoxin), DNA removal, colloidal silica capture.
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13 Pall part numbers listed, 9 with a verified Ultrafilter equivalent. For the others our filtration experts recommend the right replacement. Pall values from published datasheets.
| Part Numbers | Length | Rating | Adapter | Seal | |||||
|---|---|---|---|---|---|---|---|---|---|
| Pall SKU | Ultrafilter SKU | Competitor | UF Code | Competitor | UF Code | Competitor | UF Code | Competitor | UF Code |
| AB05NFZ2PH4 | PF-N6DL···· Unlock · Quote |
127 mm (5") | 5 | 0.2 µm sterilizing + Zeta+ | 0.2 µm Nylon 6,6 double layer 0.2 + 0.2 µm, positive zeta, sterilizing grade | SOE flat closed end, 226 O-rings | Code 2 | Silicone Elastomer | Silicone |
| AB05NFZ7PH4 | PF-N6DL···· Unlock · Quote |
127 mm (5") | 5 | 0.2 µm sterilizing + Zeta+ | 0.2 µm Nylon 6,6 double layer 0.2 + 0.2 µm, positive zeta, sterilizing grade | SOE fin end, 226 O-rings, 2 locking tabs | Code 7 | Silicone Elastomer | Silicone |
| AB1NFZ3PH4 | PF-N6DL···· Unlock · Quote |
254 mm (10") | 1 | 0.2 µm sterilizing + Zeta+ | 0.2 µm Nylon 6,6 double layer 0.2 + 0.2 µm, positive zeta, sterilizing grade | Flat closed end, external 222 O-rings | Code 3 | Silicone Elastomer | Silicone |
| AB1NFZ7PH4 | PF-N6DL···· Unlock · Quote |
254 mm (10") | 1 | 0.2 µm sterilizing + Zeta+ | 0.2 µm Nylon 6,6 double layer 0.2 + 0.2 µm, positive zeta, sterilizing grade | SOE fin end, 226 O-rings, 2 locking tabs | Code 7 | Silicone Elastomer | Silicone |
| AB1NFZ8PH4 | PF-N6DL···· Unlock · Quote |
254 mm (10") | 1 | 0.2 µm sterilizing + Zeta+ | 0.2 µm Nylon 6,6 double layer 0.2 + 0.2 µm, positive zeta, sterilizing grade | Fin end, external 222 O-rings | Code 8 | Silicone Elastomer | Silicone |
| AB2NFZ7PH4 | PF-N6DL···· Unlock · Quote |
508 mm (20") | 2 | 0.2 µm sterilizing + Zeta+ | 0.2 µm Nylon 6,6 double layer 0.2 + 0.2 µm, positive zeta, sterilizing grade | SOE fin end, 226 O-rings, 2 locking tabs | Code 7 | Silicone Elastomer | Silicone |
| AB2NFZ8PH4 | PF-N6DL···· Unlock · Quote |
508 mm (20") | 2 | 0.2 µm sterilizing + Zeta+ | 0.2 µm Nylon 6,6 double layer 0.2 + 0.2 µm, positive zeta, sterilizing grade | Fin end, external 222 O-rings | Code 8 | Silicone Elastomer | Silicone |
| AB3NFZ7PH4 | PF-N6DL···· Unlock · Quote |
762 mm (30") | 3 | 0.2 µm sterilizing + Zeta+ | 0.2 µm Nylon 6,6 double layer 0.2 + 0.2 µm, positive zeta, sterilizing grade | SOE fin end, 226 O-rings, 2 locking tabs | Code 7 | Silicone Elastomer | Silicone |
| AB4NFZ7PH4 | PF-N6DL···· Unlock · Quote |
1016 mm (40") | 4 | 0.2 µm sterilizing + Zeta+ | 0.2 µm Nylon 6,6 double layer 0.2 + 0.2 µm, positive zeta, sterilizing grade | SOE fin end, 226 O-rings, 2 locking tabs | Code 7 | Silicone Elastomer | Silicone |
| AB1NFZ7H4 | Talk to an expert → | 254 mm (10") | — | 0.2 µm sterilizing + Zeta+ | — | SOE fin end, 226 O-rings, 2 locking tabs | — | Silicone Elastomer | — |
| AB2NFZ7H4 | Talk to an expert → | 508 mm (20") | — | 0.2 µm sterilizing + Zeta+ | — | SOE fin end, 226 O-rings, 2 locking tabs | — | Silicone Elastomer | — |
| AB3NFZ7H4 | Talk to an expert → | 762 mm (30") | — | 0.2 µm sterilizing + Zeta+ | — | SOE fin end, 226 O-rings, 2 locking tabs | — | Silicone Elastomer | — |
| AB4NFZ7H4 | Talk to an expert → | 1016 mm (40") | — | 0.2 µm sterilizing + Zeta+ | — | SOE fin end, 226 O-rings, 2 locking tabs | — | Silicone Elastomer | — |
Technical guidance only
Verify fitness for your specific application and regulatory context before qualifying any replacement.
Every part number shown with an Ultrafilter number is matched for length, retention rating, end cap and seal.
For part numbers marked “Talk to an expert”, our filtration engineers recommend the right Ultrafilter element for your housing and application.
Manufactured in Germany. Direct technical support, application-specific configuration, and rapid re-supply for critical filtration lines.
Send us your Pall part number. We will confirm the direct replacement, spec sheet, and pricing within one business day.
Cross-reference note
Pall Posidyne NFZ (0.2 µm sterilizing) is a product of Pall Corporation. Pall is a registered trademark of Pall Corporation. Ultrafilter GmbH has no affiliation with Pall Corporation. This cross-reference is provided as technical guidance only. Verify fitness for your specific application and regulatory context before qualifying any replacement.