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Find Your Replacement

Fits after modification — plan for sheet-metal work

Your CR290226G037 has a replacement — with one honest catch.

Same 4,000 BTU/hr, same 230V. Plan on a minor cutout trim in the field to take the AT04RQSXX — no adapter plate needed.

Also sold as McLean · Hoffman · Pentair · nVent — CR290226G037 — 2,700 BTU/hr · 230V · NEMA 4X · R-134A

CR290226G037

Yours

CR290226G037

Modified fit
VoltAire AT04RQSXX — replacement for CR290226G037

Ours, in production

VoltAire AT04RQSXX

29.53″ H × 12.90″ D × 17.40″ W · 74.7 lbs

Fits After Modification Fit details ↓

You'll order: 1× AT04RQSXX — $4,942. Plus a minor cutout trim in the field.

Where distributors publish pricing for the nVent equivalent, VoltAire runs 48% less on average — 21–70% by model (sourced July 2026).

Your Replacement

AT04RQSXX

Fits After Modification

4,000 BTU/hr • 230V • NEMA 4X

Availability Built to Order 4-6 weeks — made in Orlando, FL
Includes Unit only Minor cutout trim in the field 30-day price lock · no-obligation quote
Built Orlando, FL — UL/cUL Listed

Your order total

$4,942

Unit price. Minor cutout trim done in the field.

Start My Order

Backed by VoltAire’s 12-month warranty (PDF) · UL 484 · Made in Orlando, FL

Existing Unit

CR290226G037

2,700 BTU/hr (791 Watt) • 230V
CR290226G037
Brand McLean
Series CR290
Capacity 2,700 BTU/hr (791 Watt)
Voltage 230V
Heat No
Finish S

Where distributors publish pricing for the OEM equivalent, VoltAire runs 48% less on average (21-70% by model).

VoltAire Replacement In Production
AT04RQSXX
4,000 BTU/hr • 230V
VoltAire AT04RQSXX
Brand VoltAire
Series AT Telecom Series
Capacity 4,000 BTU/hr +48% cooling
Voltage 230V
Heat No
Finish 304 Stainless Steel (NEMA 4X)

What You'll Order

1× AT04RQSXX $4,942

Popular options

Screens sawdust, filings & insects off the condenser coil — not an enclosure air filter; cabinet air stays sealed.

Need a different voltage or capacity? Configure your AT04 / AT06 →

Built to Order • 4-6 weeks

1

Super Cool Coverage — 2 years of coverage, 30-day returns, no restocking fee. Terms

Details

Fit Details

Fits After Modification

Same cooling capacity and voltage as the CR290226G037 — generally considered a match, just not bolt-for-bolt. The cabinet cutout differs by a small amount, so a quick trim with a sawzall (or similar tool) gets the VoltAire AT04RQSXX into place. Minor field work, no adapter plate required — routine for any installer. Call (844) 925-5668 if you'd like us to walk through the trim before you order.

Not sure? Talk to a fit specialist — (844) 925-5668.

CR290226G037 replacement — common questions

What replaces the McLean CR290226G037?
The VoltAire AT04RQSXX — 4,000 BTU/hr at 230V, NEMA 4X, UL/cUL Listed and built in Orlando, FL. Fits after a minor cutout trim — no adapter needed.

Will the VoltAire AT04RQSXX fit my CR290226G037 cutout?
After a minor cutout trim in the field — no adapter plate needed.

How much does a CR290226G037 replacement cost?
The VoltAire AT04RQSXX is $4,942. Where distributors publish pricing for the nVent equivalent, VoltAire runs 48% less on average — 21–70% by model (sourced July 2026). Volume discounts start at 4 units, and every quote locks pricing for 30 days with no obligation.

How fast can I get a replacement for my CR290226G037?
Configured builds ship in 4–6 weeks from Orlando, FL. In-stock variants are sometimes on the shelf — call (844) 925-5668 and we'll find the fastest path for your spec.

Is the VoltAire AT04RQSXX an original McLean part?
No. VoltAire is an independent brand — an engineered replacement, not an OEM part. VoltAire Cooling is not affiliated with McLean, Hoffman, Pentair, or nVent. Units are UL/cUL Listed (UL 484) and manufactured in Orlando, Florida.

Why switch to VoltAire?

Engineered Replacement

Matched voltage and NEMA 4 protection, with the capacity difference stated in plain numbers above — with a clear fit path for your enclosure: direct, adapter plate, or template-guided modification. Built to replace McLean, Hoffman, Pentair, and nVent.

Built & Tested in the USA

Manufactured in Orlando, FL with a 5-point pressure and leak test. In-stock models ship fast from East Coast (VA) and Rocky Mountain (ID) warehouses; built-to-order configurations ship in 4-6 weeks.

48% Below Published Online Pricing, on Average

No distribution markup. Transparent pricing. Volume discounts at 4+ and 7+ units. Integrator pricing available for panel shops.

Need heat, stainless, 230V, or remote monitoring?

The AT04 is available with electric heat, stainless steel NEMA 4X, 48VDC, and factory ethernet controllers with Lead-Lag, SNMP, and BACnet.

Configure Your AT04 / AT06 →

Related models

CR290226G037 (this page) CR290226G045 CR290216G036 CR290226G002 CR290246G400 CR290216G013 CR290216G002 CR290226G030 CR290216G030 CR290226G058 CR290246G401 CR290216G035 CR290226G020

VoltAire Cooling is an independent party and is not affiliated with or endorsed by McLean, Hoffman, Pentair, or nVent. All competitor brand names and model numbers are the property of their respective owners and are used here for identification and compatibility purposes only.