FS-Curtis RNB25 Non-Cycling Refrigerated Dryer 25 SCFM #FRNB00025-1XA5XX

FS-Curtis RNB25 — 25 SCFM Refrigerated Air Dryer

A shop running two or three air tools off one mid-size compressor needs a dryer that keeps up with real, overlapping demand instead of falling behind the moment two techs reach for tools at once — that's the gap the RNB25 is built to close.

That's what the FS-Curtis RNB25 solves — a 25 SCFM non-cycling refrigerated dryer, built for shops that need dependable moisture control first, without paying for cycling-dryer energy-saving features they don't need at this air volume. It's also available with a factory-matched Filter Package (prefilter CF7-16-4-DPL + afterfilter CF5-16-4-DPL) as an add-on option, which bundles the particulate and coalescing filtration the dryer needs to hit its rated dew point, instead of leaving filtration as an afterthought.

Who the RNB25 Is Built For

• ✅ A single-bay independent shop running one small piston compressor that's tired of draining rusty water out of the air lines every week and wants that problem solved for good
• ✅ A shop that just had a customer come back with a paint job full of fisheyes from moisture in the line, and doesn't want to explain that call again
• ✅ An owner replacing a worn-out or discontinued dryer who wants a straightforward drop-in unit — same footprint, same 115V outlet, no rewiring or re-plumbing required
• ✅ A mobile mechanic or small specialty shop where floor space is tight and a compact, wall-mountable dryer matters as much as the moisture removal itself
• ✅ A shop investing in pneumatic tools or a paint booth for the first time and wanting to protect that investment from day one instead of waiting for a corrosion problem to show up

What the RNB25 Is NOT Built For

• ❌ Multi-bay commercial shops running several impact wrenches, tire machines, and paint guns off the same line at once — step up to a 75+ SCFM model built for that volume
• ❌ Facilities that already run 3-phase power and want a dryer sized to match a larger 3-phase compressor — this tier is built around standard 115V single-phase

What Makes the RNB25 Different

Heat Exchanger

The RNB25 uses a copper tube-on-tube heat exchanger, engineered for reliable, consistent dew point control at 25 SCFM without fouling or excess pressure drop.

Condensate Drain

Timed electric drain removes collected moisture automatically — reliable, automatic operation with no manual draining needed.

Refrigerant & Air Quality

Uses R513A refrigerant, a low global-warming-potential option, and delivers ISO 8573-1:2010 Class 4–5 pressure dew point — dry, reliable air for general shop and industrial use.

Optional Filter Package

Choose the “Includes Filter Package” option to add a factory-matched prefilter (CF7-16-4-DPL) and afterfilter (CF5-16-4-DPL), sized to this dryer's flow rate and ready to plumb — one less step for your install crew.

Full Specifications — RNB25

FS-Curtis Warranty — RNB25

FS-Curtis backs the RNB25 with a 2-year parts & labor warranty.

Warranty service is through Alamo Equipment & Service — call (844) 480-6059 instead of waiting on a manufacturer hotline. Coverage is subject to FS-Curtis warranty terms, conditions, and requirements.