Cut our change-out frequency
Dust holding capacity is noticeably better than what we were using, so we're getting longer intervals between changes.
Airguard Envirocare PBR-AG is an OEM-equivalent pre-pocket filter compatible with Altair System 2, Altair Neptune and Altair Vega, helping protect the high-efficiency filter stage from larger dust and particles.


The PBR-AG Pre-Pocket Filter uses four non-shedding polyester pockets in a stainless-steel frame to capture large particles and salt aerosols before they reach high-efficiency filters. With high dust-holding capacity and performance up to 80°C, it is suited to humid, salt-laden offshore and coastal environments. It is also an OEM-equivalent replacement for Altair-specified systems.
The four pockets use non-shedding, thermally bonded polyester in a robust stainless-steel frame with a 22mm header. The standard 4-pocket size is 597 × 597 × 400mm, with other sizes, clips and seals available for bank installations.
Attribute | Detail | Specification | Value |
Brand | Airguard Envirocare | Flow Rate | n/a |
Division | Filtration | Filter Efficiency Rating | 93% to 5µ; 87%/93% |
Industry | Oil & Gas, Power Generation | Operating Temperature | n/a |
Application | Offshore, Coastal | Height | 597mm |
Technology | Filtration | Width | 597mm |
Product Type | Pre-Filter Pocket | Depth | 400mm |
Product Style | Flat-Pack Pocket | Outside Diameter | n/a |
Media | Advanced Synthetic Media | Inside Diameter | n/a |
Materials of Construction | SS, 22mm frame | Weight | n/a |
Classification | n/a | Non-standard Size | Std & non-std sizes |
Product
PBR – AG
OEM Systems
OEM Part Numbers
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The Process
Get in touch with our experts, and we'll deliver the right product to meet your exact expectations.
Contact us with your filter requirements, environment details, or existing OEM part numbers.
Our filtration specialists review your needs and identify the ideal solution for your sector.
Receive a competitive, comprehensive quote within 24 hours.
Your filters are manufactured or assembled to exact OEM-level specifications.
Your products are shipped with predictable lead times, ensuring operations never miss a beat.
Contact us with your filter requirements, environment details, or existing OEM part numbers.
Our filtration specialists review your needs and identify the ideal solution for your sector.
Receive a competitive, comprehensive quote within 24 hours.
Your filters are manufactured or assembled to exact OEM-level specifications.
Your products are shipped with predictable lead times, ensuring operations never miss a beat.
Contact us with your filter requirements, environment details, or existing OEM part numbers.
Our filtration specialists review your needs and identify the ideal solution for your sector.
Receive a competitive, comprehensive quote within 24 hours.
Your filters are manufactured or assembled to exact OEM-level specifications.
Your products are shipped with predictable lead times, ensuring operations never miss a beat.
Common questions about pbr–ag
What customers say about pbr–ag
Dust holding capacity is noticeably better than what we were using, so we're getting longer intervals between changes.
Noticeable improvement in air quality after fitting these. Sturdy frame and accurate dimensions — no complaints.
Meets our stringent air quality targets and the support from Airguard helping us specify was first class. Highly recommend.
We've switched our units over to these and the efficiency is consistent with a noticeably longer service life than our previous supplier.
Kept us updated from order through to dispatch. The filters themselves have performed exactly as described.
Sent over our old filter details and got a like-for-like match back the same day. Fitted first time with no modifications needed.
Good build and consistent efficiency. Easy to install and the technical team helped us pick the right grade.
Great filtration and good value for money. Delivery was prompt and the fit was accurate for our housings.
Matched our OEM specification perfectly and was delivered within 24 hours. Excellent airflow and build quality.
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