FS-Curtis CA5 120G Duplex 5(2)HP Ultra Pack Air Compressor #CA5-DUP

SKU: ALMFSCFCA05E50D1UA2L1XX
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Regular price $12,177.48
Regular price -24% $16,023.00 Sale price $12,177.48
Available to order
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Need setup help or an install quote? Call Alamo at (817) 865-3707 — we service every unit we sell and can quote installation.
Quick Specs
Model / Part Number CA5 Duplex Ultra Pack
Horsepower 5 HP (x2, Duplex)
Tank 120 Gallon Horizontal ASME
Airflow 34.8 CFM @ 175 PSI
Pressure Range 175 PSI
Warranty 12 months

FS-Curtis CA5-DUP — 5 HP (x2, Duplex) Air Compressor

The busiest shops need both the redundancy of a duplex pump setup and the factory-installed air-quality accessories that keep a high-volume operation running without someone manually draining tanks between jobs.

The FS-Curtis CA5-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 CA5-DUP Is Built For

  • ✅ A 3-shift automotive collision or fleet maintenance operation where a compressor outage during a Saturday rush means every bay stops billing at once, and the second pump keeping the line running pays for itself the first time it's needed
  • ✅ A body shop where an aging single compressor has already failed mid-paint-job once, ruining a clear coat from an interrupted air supply, and won't risk repeating that with a customer's vehicle on the line
  • ✅ A shop that's grown from one bay to three or four and outpaced its original simplex compressor's duty cycle, now needing both more air volume and a backup pump instead of running one unit into the ground
  • ✅ An operator who's already standardized on FS-Curtis CA5 simplex units at other locations and wants the top Ultra Pack duplex tier for the flagship or highest-volume shop in the group
  • ✅ A facility manager budgeting for a planned second-bay expansion in the next year who'd rather buy the headroom now than replace an undersized unit again in 18 months

What the CA5-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 CA5-D duplex without Ultra Pack saves meaningfully if the accessories aren't needed yet
  • ❌ Shops with limited floor space — the 120-gallon duplex tank has a larger footprint

What Makes the CA5-DUP Different

Commercial 2-Stage Pump

The CA5-DUP uses an E50 (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 34.8 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

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

✅ Best For
  • Redundancy + factory accessories
  • High-volume commercial shops
  • Zero-downtime operations
❌ Not Ideal For
  • Single-bay / small shops
  • Budget-first buyers

CA5-DUP vs. Atlas AF9-120H (7.5 HP, 120 Gal Horizontal) — Which Compressor Is Right for Your Shop?

Decision Point CA5-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 34.8 CFM 22 CFM @ 175 PSI
Redundancy Duplex — two independent pumps, built-in backup Simplex — single higher-HP pump, no built-in redundancy
Included accessories Ultra Pack bundle (auto-drain/dryer per FS-Curtis config) Standard commercial configuration

Choose the CA5-DUP for pump redundancy plus factory-installed air-quality accessories in one package. Choose the Atlas AF9-120H for a simpler single-pump 120-gallon setup at a lower price if redundancy isn't required. Both stay inside Alamo’s catalog — call (817) 865-3707.

Full Specifications — CA5-DUP

Model / Part Number CA5 Duplex Ultra Pack
Horsepower 5 HP (x2, Duplex)
Pump E50 (x2), Cast-Iron, Two-Stage
Configuration Duplex Two-Stage Reciprocating, Ultra Pack
Tank 120 Gallon Horizontal ASME
Airflow 34.8 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 (FCA05E50D1U-A2L1XX)

Three Phase:
3/60/200-208V (FCA05E50D1U-A9L1XX)
3/60/230V (FCA05E50D1U-A3L1XX)
3/60/460V (FCA05E50D1U-A4L1XX)
Ultra Pack Features factory-installed automatic tank drain and refrigerated air dryer
Overall Dimensions 78" L x 31" W x 53" H
Shipping Weight 1050 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: 78" L x 31" W x 53" 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: 1050 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 — CA5-DUP

FS-Curtis backs the CA5-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 CA5-DUP

What does 'Duplex Ultra Pack' mean on the CA5-DUP?

This combines two independent 5 HP pumps on one 120-gallon tank (Duplex, for redundancy) with FS-Curtis's Ultra Pack accessory bundle (typically auto-drain and air treatment equipment) factory-installed. Call Alamo at (817) 865-3707 to confirm the exact accessory bundle.

What electrical does the CA5-DUP need?

Available in single-phase (230V) or three-phase (200-208V, 230V, or 460V) configurations. Have an electrician confirm your panel capacity given the combined draw of two pumps.

How much floor space does the CA5-DUP need?

The CA5-DUP measures 78" L x 31" W x 53" H and weighs 1,050 lbs.

What's the warranty on the CA5-DUP?

FS-Curtis backs the CA5-DUP with a 12-month standard manufacturer's warranty. Ultra Pack duplex units may also be eligible for FS-Curtis's extended UltraShield warranty program with proper registration.

Why Buy the CA5-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, 34.8 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 CA5-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