FS-Curtis ML15+ 120G Horiz 15HP Simplex Tank Ultra Pack Air Comp #ML15Plus-HUP

FS-Curtis ML15Plus-HUP — 15 HP Air Compressor

It's the busiest Saturday of the month and a tech in bay four is standing there, impact wrench in hand, waiting on the tank to build back up while two other bays are pulling air at the same time — that's the moment a shop owner realizes their compressor, not their crew, is the bottleneck.

The FS-Curtis ML15Plus-HUP is a two-stage reciprocating, ultra pack compressor rated for 15 HP with a 120 gallon horizontal ASME tank, built for multi-bay shops and commercial operations that need compressed air on tap all day. The included Ultra Pack — factory-installed automatic tank drain and refrigerated air dryer — cuts down on the maintenance routine so your team spends less time babysitting the compressor and more time on paying work.

Who the ML15Plus-HUP Is Built For

• ✅ A commercial shop that installed a standard ML15 eighteen months ago and has since added a fourth bay — on a busy Saturday the tank now dips low enough that a tech waiting on an impact wrench notices the lag, and 49.5 CFM is no longer quite enough headroom
• ✅ A body shop running two paint booths at once that's had a job come back with visible moisture streaks in the clear coat, and wants both the highest CFM available at 15 HP and the factory-installed dryer solved in the same purchase instead of chasing the problem after the fact
• ✅ An owner replacing a compressor that's started short-cycling under real multi-bay draw, who's compared the standard ML15-HUP's spec sheet against the ML15+ HUP and decided the extra 6.3 CFM from the C89 pump is worth the price difference for a shop already running near capacity
• ✅ A shift supervisor at a multi-bay fleet-maintenance facility who's watched more than one tech stand around waiting for air pressure to rebuild during a rush, and needs the highest-output 15 HP configuration FS-Curtis makes rather than stepping up to a full duplex setup
• ✅ A multi-location operator who's standardized on FS-Curtis's ML Series at smaller shops and is now equipping the group's busiest location, choosing the top 15 HP tier specifically because that site runs closer to its air-demand ceiling than the others

What the ML15Plus-HUP Is NOT Built For

• ❌ Shops whose demand is fully covered by the standard ML15 (49.5 CFM) or an ML10 unit — the ML15+ costs more for the extra output
• ❌ Budget-conscious buyers who don't need the extra accessories yet — the base ML15Plus-SH saves money
• ❌ Shops needing single-phase power — this series is three-phase only

What Makes the ML15Plus-HUP Different

Commercial 2-Stage Pump

The ML15Plus-HUP uses a C89, Cast-Iron, Two-Stage pump built for daily, all-day duty cycles — not a hobby-grade single-stage unit that struggles under continuous shop use.

CFM & Pressure Output

Delivers 55.8 CFM @ 175 PSI and holds pressure up to 175 PSI, enough headroom to run impact wrenches, tire equipment, and paint tools without the tank running dry.

Ultra Pack Upgrades

Includes factory-installed automatic tank drain and refrigerated air dryer — upgrades that reduce maintenance and extend the life of the tank and pump versus a base-model compressor.

Power Requirements

Three-Phase only, 230V/460V options available. Confirm your panel and breaker sizing with an electrician before delivery.

Full Specifications — ML15Plus-HUP

FS-Curtis Warranty — ML15Plus-HUP

FS-Curtis backs the ML15Plus-HUP with a 1-year parts-only warranty.

Warranty service is through Alamo Equipment & Service — call (817) 865-3707 instead of waiting on a manufacturer hotline. Coverage is subject to FS-Curtis warranty terms, conditions, and requirements.