FS-Curtis CA5+ 120G Duplex 5(2)HP Ultra Pack Air Compressor #CA5Plus-DUP
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| Model / Part Number | CA5+ Duplex Ultra Pack |
| Horsepower | 5 HP (x2, Duplex) |
| Tank | 120 Gallon Horizontal ASME |
| Airflow | 37 CFM @ 175 PSI |
| Pressure Range | 175 PSI |
| Warranty | 12 months |
FS-Curtis CA5PLUS-DUP — 5 HP (x2, Duplex) Air Compressor
A high-volume shop that can't tolerate downtime AND can't tolerate moisture in the air line — where both failures cost real money — needs redundancy and air-quality accessories solved together, not as two separate purchases down the road.
The FS-Curtis CA5PLUS-DUP is a duplex two-stage reciprocating, ultra pack compressor rated for 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 CA5PLUS-DUP Is Built For
- ✅ A high-volume collision or fleet shop where a compressor failure during a rush shift means every bay stops billing, and moisture in the line has already cost a paint job — needing both problems solved in one unit
- ✅ An operation standardizing on the CA5+ platform's top tier for its busiest or flagship location, wanting maximum uptime insurance and factory-installed air-quality accessories together
- ✅ A shop planning real growth over the next year or two that would rather buy the fully-equipped duplex Ultra Pack now than upgrade twice as demand increases
- ✅ A facility manager who's had to schedule downtime around a single compressor's maintenance and wants one pump serviceable while the second keeps a demanding operation running
- ✅ A multi-bay paint and finishing operation where both continuous air volume and moisture-free air quality directly affect job outcomes, not just tool performance
What the CA5PLUS-DUP Is NOT Built For
- ❌ Single-bay or small shops — this is the most expensive configuration in the CA5+ line and is overkill for lighter demand
- ❌ Budget-conscious buyers — the base CA5Plus-D duplex without Ultra Pack saves meaningfully if accessories aren't needed yet
- ❌ Shops with limited floor space — the largest footprint in the CA5+ line at 84" long
What Makes the CA5PLUS-DUP Different
Commercial 2-Stage Pump
The CA5PLUS-DUP uses an E57 (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 37 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.
- Redundancy + efficiency + accessories
- High-volume commercial shops
- Maximum headroom for growth
- Single-bay / small shops
- Budget-first buyers
CA5PLUS-DUP vs. Atlas AF9-120H (7.5 HP, 120 Gal Horizontal) — Which Compressor Is Right for Your Shop?
| Decision Point | CA5PLUS-DUP | Atlas AF9-120H (7.5 HP, 120 Gal Horizontal) |
|---|---|---|
| Horsepower / Tank | 5 HP x2 / 120 Gal Horizontal | 7.5 HP / 120 Gal Horizontal |
| CFM @ 175 PSI | 37 CFM | 22 CFM @ 175 PSI |
| Redundancy + accessories | Duplex pumps + Ultra Pack bundle (auto-drain/dryer) | Simplex, standard commercial configuration |
| Best fit | Highest-volume shops wanting redundancy and factory accessories together | Shops wanting a simpler single-pump setup at lower cost |
Choose the CA5+ DUP for the most fully-equipped, redundant setup in the CA5+ line. Choose the Atlas AF9-120H for a simpler single-pump 120-gallon setup at a lower price if you don't need redundancy or the Ultra Pack accessories. Both stay inside Alamo’s catalog — call (817) 865-3707.
Full Specifications — CA5PLUS-DUP
| Model / Part Number | CA5+ Duplex Ultra Pack |
| Horsepower | 5 HP (x2, Duplex) |
| Pump | E57 (x2), Cast-Iron, Two-Stage |
| Configuration | Duplex Two-Stage Reciprocating, Ultra Pack |
| Tank | 120 Gallon Horizontal ASME |
| Airflow | 37 CFM @ 175 PSI |
| Pressure Range | 175 PSI |
| Motor / Electrical | Single or Three-Phase, 230V/460V options available |
| Phase / Hz / Voltage |
Single Phase: 1/60/230V (FCA05E57D1U-A2L1XX) Three Phase: 3/60/200-208V (FCA05E57D1U-A9L1XX) 3/60/230V (FCA05E57D1U-A3L1XX) 3/60/460V (FCA05E57D1U-A4L1XX) |
| Ultra Pack Features | factory-installed automatic tank drain and refrigerated air dryer |
| Overall Dimensions | 84" L x 30" W x 54" H |
| Shipping Weight | 975 lbs |
| Warranty | 12 months |
⚠️ Setup Requirements
- Electrical: Single or Three-Phase, 230V/460V options available; have an electrician confirm your panel capacity before delivery.
- Floor space: 84" L x 30" W x 54" H footprint; plan clear access on at least two sides for maintenance and tank drain.
- Ventilation: Locate in a dry, ventilated area away from dust and moisture to protect the pump and tank.
- Weight: 975 lbs shipping weight — confirm your floor/dock can receive and position the unit.
- Setup: Installation is available as a quoted service (piping, electrical tie-in, functional test) — it’s not included in the purchase price. Call (817) 865-3707 for an install quote if you’d like Alamo’s crew to set it up.
FS-Curtis Warranty — CA5PLUS-DUP
FS-Curtis backs the CA5PLUS-DUP with a 1-year parts-only warranty.
| Component | Coverage Term |
|---|---|
| Tank & pump | 1 year parts |
| Motor & electrical components | 1 year parts |
| Ultra Pack accessories (auto tank drain, refrigerated air dryer) | 1 year parts |
| Wear items (belts, filters, gaskets) | Not covered (consumable) |
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.
Frequently Asked Questions — FS-Curtis CA5PLUS-DUP
Why Buy the CA5PLUS-DUP from Alamo Equipment & Service?
- Installation available. Buying online gets you the compressor — piping and electrical tie-in are an extra-charge service. We have the crews to install it and can quote that separately; call (817) 865-3707 for a quote.
- We service it. These compressors need preventative maintenance up to 4x a year per the manufacturer — oil changes, belt and air filter checks, contactor and electrical inspection. Call (817) 865-3707 for maintenance, repairs, or support — and if you ever need warranty work, we register your equipment with the manufacturer and handle the claim directly, so you’re not stuck navigating vendor support on your own.
- We size it with you. 5 HP (x2, Duplex), 120 Gallon Horizontal ASME tank, 37 CFM @ 175 PSI — we’ll confirm this matches your shop’s actual air draw before you order.
- Free shipping. Ships free to the 48 contiguous states.
- Expert comparison help. Not sure if the CA5PLUS-DUP or the Atlas AF9-120H (7.5 HP, 120 Gal Horizontal) is the better fit? We’ll walk you through it.
A shop buying from a pure e-commerce retailer gets a box. A shop buying from Alamo gets a partner.
Ships by freight. Add to cart and enter your ZIP for a freight quote, or call us.
See the attached document for FS CURTIS WARRANTY