
Keltec 1/2", 58 CFM Compressed Air Filter, Float Drain, PSI Diff Gauge — PN: CAH-0058
- 1/2" port, 58 CFM rated for compact compressed air systems
- Includes float drain and differential pressure gauge for service-ready monitoring

Air/oil separators, coalescing filters, compressor oil, desiccant, condensate management, and dryers from North America's largest air/oil separator manufacturer. Stock up on replacement parts and upgrade your air quality with confidence.
Four decades of compressed air filtration innovation, delivered through Compressed Air Advisors Online.
Founded in 1982, Keltec has decades of compressed air filtration expertise built into every product.
The largest manufacturer of air/oil separators in North America — trusted by industrial fleets coast to coast.
Replacement elements and filters engineered to meet or exceed original equipment specifications.
Buy online through Compressed Air Advisors with fast shipping and expert support across the US.
KELTEC Technolab was founded in 1982 by Ed Kaiser, Sr., formerly a 20-year engineer at the Air Maze Corporation. What started with air/oil separators quickly grew into a full line of air-intake filters, oil filters, coalescing filters, and synthetic compressor lubricants.
Through strategic mergers — Technolab in 2002, Chicopee Engineering in 2016, and Air Supply Company in 2019 — Keltec has grown into the largest manufacturer of air/oil separators in North America, with a stocking warehouse in Indaiatuba/São Paulo, Brazil serving South America since 2011.
Today, Keltec stands for engineering rigor, OEM-grade quality, and the reliability industrial buyers count on. Compressed Air Advisors Online is proud to deliver the full Keltec catalog with expert guidance and nationwide shipping.
40+
Years in Business
#1
Air/Oil Separator Maker in NA
2
Continental Warehouses

From compressor rebuilds to plant-wide air quality, Keltec covers the full compressed air system.
Stock OEM-grade Keltec elements and separators to keep planned maintenance windows on schedule.
Protect pneumatic tools, paint lines, and process equipment with consistent clean, dry air.
Drain and treat oily condensate to meet environmental discharge requirements.
Pair Keltec desiccants and dryers with filtration to hit ISO 8573-1 air quality classes.
Reduce pressure drop and energy waste by replacing restricted filter elements on time.
Source air/oil separators, intake filters, and coalescers for rotary screw rebuild kits.
One trusted brand across every link in your compressed air system.
Keltec's flagship line — high-efficiency separators for every major rotary screw compressor brand.
Multi-stage coalescing and particulate filters delivering compressed air to demanding specifications.
OEM-spec filter elements engineered for direct drop-in replacement and long service life.
Synthetic compressor oils formulated to extend service intervals and protect rotating equipment.
Activated alumina and molecular sieve desiccants plus drying solutions for moisture-free air.
Float drains, zero-loss drains, and oil/water separators for clean compressed air system discharge.
Direct OEM-grade replacements, ready to ship from Compressed Air Advisors Online.




Real feedback from maintenance teams and plant managers.
"Keltec separators have been our standard on every rotary screw rebuild for years. Quality is consistent and lead times through Compressed Air Advisors are excellent."
— Michael R.
"Switched our entire plant's coalescing filters to Keltec — pressure drop is noticeably lower and our paint line finish quality improved immediately."
— Sarah K.
"The CAH-0058 with the float drain has been bulletproof in our shop. Easy install, clear differential gauge, and it just works."
— David T.
"Their replacement elements are a true OEM drop-in fit. No more sourcing headaches and the price beats what we were paying through our old distributor."
— Jennifer M.
"Ordered separators on a Monday and had them on the shelf by Wednesday. The Compressed Air Advisors team knew exactly what we needed for our compressor."
— Robert P.
"We rely on Keltec for everything from desiccant to condensate drains. One trusted brand across the whole compressed air system — that's huge for us."
— Lisa H.
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Answers about products, quality, usage, and how to buy through Compressed Air Advisors.
Keltec manufactures air/oil separators, compressed air filters, compressor oil, desiccant, condensate management systems, and air dryers for industrial compressed air systems.
Tell us about your system. We'll help you find the right Keltec part the first time.