Almig 57210101, direct aftermarket replacement. This separator is an aftermarket separator element designed as a direct replacement for units from brands such as Almig, Compair-Demag, Fai Filtri, and others. It features borosilicate micro glass fibre media with a 3 µm filtration rating and a collapse pressure of 5 bar. With a permissible flow of 870 m³/h and an out-in flow direction, this element is built to the original dimensions and ratings for reliable performance in compressed air systems. The organic fiber bonded NBR/SBR gasket ensures a secure seal. Suitable for Compair-Demag L series and Gardner VS/ESM series compressors.
Technical properties & cross references
Specifications
| Element Collapse pressure |
5 bar (73 PSI) |
| Filtration Media |
Borosilicate micro glass fibre 3 µm |
| Media type |
Borosilicate micro glass fibre |
| Filtration Rating |
3 µm |
| Permissible Flow |
870 m3/h |
| Flow direction |
Out-In |
| Gasket |
Organic fiber bonded NBR / SBR 2 |
| Total Height |
305 mm (12") |
| Product Net Weight |
4.07 kg (8.97 lbs) |
| Largest Inner Diameter |
157 mm (6 3/16") |
| Outer Diameter |
220 mm (8 21/32") |
| Largest Outer Diameter |
272 mm (10 23/32") |
| Stat. HS-Code |
84149000 |
| Country of Manufacture |
China |
Price beat guarantee
We check what other aftermarket sellers charge for this same part. Their prices on the date we checked:
| Seller |
Price |
Checked |
| Oxfil |
USD 163.64 |
16 Oct 2026 |
| FilterFinder Online |
USD 290.00 |
15 Oct 2026 |
| Air Compressor Services |
USD 406.50 |
15 Oct 2026 |
| The Air Market |
USD 1,319.32 |
15 Oct 2026 |
| Spare Part Mart |
USD 130.91 |
Today |
Our price of USD 130.91 is 20% to 90% less than these sellers.
Found this part cheaper somewhere else? Send us the listing and we will beat it by 5% under our Price Beat Guarantee. Every order is also covered by our 30 day money back guarantee.
Use cases & applications
High-Volume Continuous Operation
In industrial plants running Compair-Demag L 75 RS or L 55 G compressors non-stop, the 870 m³/h flow capacity handles peak demand without pressure drop, maintaining system efficiency during extended shifts.
Dusty and Harsh Environments
For Gardner ESM 75 or ESM 80 compressors operating in construction or mining sites, the 3 µm borosilicate media captures fine particulates, protecting downstream equipment from abrasive wear.
Scheduled Maintenance Programs
Facilities with multiple L 55 and L 75 units can standardise on this separator, simplifying inventory management and ensuring consistent replacement intervals across the fleet.
Retrofit for Older Models
Upgrading a 2004 Compair-Demag L 55 with this aftermarket separator restores filtration performance to original specs, extending the compressor's service life without costly OEM parts.
Frequently asked questions
How do I confirm this separator fits my specific compressor model?
Check your compressor's model number against the verified list: Compair-Demag L 55 RS, L 55 from 2004, L 55 G, L 75 RS, L 75 from 2004, L 75 G, Gardner VS 75, ESM 75, ESM 80, ESM 55. Also verify dimensions: total height 305 mm, largest inner diameter 157 mm, outer diameter 220 mm, largest outer diameter 272 mm.
What is the filtration rating and media type?
The filter media is borosilicate micro glass fibre with a 3 µm filtration rating. This provides effective removal of oil mist and fine particles from compressed air.
What are the key dimensions and thread details?
Total height is 305 mm, outer diameter 220 mm, largest outer diameter 272 mm, and largest inner diameter 157 mm. The gasket is organic fiber bonded NBR/SBR. Flow direction is out-in. No thread specifications are provided.
Is this an OEM or genuine part?
No, this is an aftermarket replacement element built to the original dimensions and ratings. It is not a genuine or OEM part, but a cost-effective alternative that meets the same performance parameters.
How do I install this separator element?
Installation is straightforward: ensure the compressor is off and depressurised. Remove the old element, clean the housing, fit the new element with the gasket in place, and secure the cover. Follow your compressor manual for specific steps.