FS-Curtis ML7.5 120G 7.5HP(2) Duplex Ultra Pack Air Comp #ML7.5-DUP

FS-Curtis ML7.5-DUP — 7.5 HP (x2, Duplex) Air Compressor

A busy commercial shop running four or five bays at once has watched a single pump failure take every tool offline mid-shift, and the owner wants both the redundancy of a second pump and the factory-installed dryer so it never happens again.

The FS-Curtis ML7.5-DUP is a duplex two-stage reciprocating, ultra pack compressor rated for 7.5 HP (x2, Duplex) 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 ML7.5-DUP Is Built For

• ✅ A five-bay collision center lost an entire Saturday afternoon when its single compressor pump seized mid-shift, leaving three techs standing around while a fourth called Alamo for an emergency loaner — the owner bought the duplex specifically so a second pump keeps the shop running while the first gets serviced
• ✅ A paint shop that had two booths' worth of finish work come back streaked with moisture traced to a tank nobody had drained in weeks now wants the auto-drain and refrigerated dryer handled automatically across the whole facility, not just one booth
• ✅ A shop owner who priced the base ML7.5-D duplex against this Ultra Pack version and decided the extra few hundred dollars a year in avoided moisture-related redo work justified the accessory bundle
• ✅ A four-bay commercial shop running impact wrenches, a paint gun, and a sandblast cabinet simultaneously during a busy week needs the full 57.4 CFM combined output with the uptime insurance of two pumps, not one
• ✅ A regional shop group's flagship location — the one that can't afford downtime because it's also the training site for new techs — got the top-tier ML7.5-DUP while satellite locations run the simpler ML7.5-SH

What the ML7.5-DUP Is NOT Built For

• ❌ Smaller shops where a simplex ML7.5-HUP already covers the air draw — the duplex costs meaningfully more
• ❌ Budget-conscious buyers who don't need the extra accessories yet — the base ML7.5-D duplex saves money
• ❌ Shops with limited floor space — this is a larger-footprint duplex unit

What Makes the ML7.5-DUP Different

Commercial 2-Stage Pump

The ML7.5-DUP uses a C79 (x2), 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 57.4 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

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

Full Specifications — ML7.5-DUP

FS-Curtis Warranty — ML7.5-DUP

FS-Curtis backs the ML7.5-DUP with a 1-year parts-only 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.