The ATLAS COPCO 2901-0779-00 oil separator replacement installs as a direct drop-in for the original OEM separator. It measures 5.2″ OD x 5.54″ tall with a 7.99″ OD flange and a 2.83″ ID. This aftermarket air/oil separator is made in the USA and offers oil separation equal to or better than the original OEM separator specifications.
Air/oil separators remove oil from compressed air before it leaves the compressor. This aftermarket separator captures fine oil aerosols and returns them to the sump, delivering the highest level of clean compressed air with minimum pressure loss. Our separators are tough enough to hold their shape under pressure and maintain even pressure differentials to avoid collapsing.
- 2 – 3 PPM residual oil content in functioning systems
- Every air/oil separator is individually tested for electrical ground
- Borosilicate Microglass filter media is standard
- Top-quality gasket material
- Made in the USA
The ATLAS COPCO 2901-0779-00 separator equivalent is manufactured in the USA with superior materials and engineering. We have replaced air-oil separators from all major brands in hundreds of thousands of applications since 1976.








