Mini-Split Air Conditioner Systems (AC & Heat) 21 Seer
Filter and sort
56 of 5307 products
- Refrigerant R454B
Cooper & Hunter 12,000 BTU Single Zone Slim Duct, 230V, R454B - Ductless Mini Split Air Conditioner Heat PumpCoolingCooling, BTU12,000 BTUup to 122°FHeatingHeating, BTU12,000 BTUdown to −13°FZones1 zoneCoverageUp to, sq ftup to 550 sq ftSEER2197-Yrwarranty230VFrom $1,702.08 /- 1003 in stock
- Free shipping
- Refrigerant R454B
Cooper & Hunter 12,000 BTU Single Zone Ceiling Cassette, 230V, R454B - Ductless Mini Split Air Conditioner Heat PumpCoolingCooling, BTU12,000 BTUup to 122°FHeatingHeating, BTU12,000 BTUdown to −13°FZones1 zoneCoverageUp to, sq ftup to 550 sq ftSEER221.17-Yrwarranty230VFrom $1,794.24 /- 1149 in stock
- Free shipping
- Refrigerant R454B
Cooper & Hunter 18,000 BTU 2-Zone 12k+12k Concealed Duct, 230V, R454B - Ducted Mini Split Air Conditioner Heat PumpCoolingCooling, BTU18,000 BTUup to 122°FHeatingHeating, BTU19,000 BTUdown to −13°FZones2 zonesCoverageUp to, sq ftup to 800 sq ftSEER2197-Yrwarranty230VFrom $3,153.60 /- 575 in stock
- Free shipping
- Free gift
- Refrigerant R454B
Cooper & Hunter 24,000 BTU Single Zone Ceiling Cassette, 230V, R454B - Ductless Mini Split Air Conditioner Heat PumpCoolingCooling, BTU24,000 BTUup to 122°FHeatingHeating, BTU25,000 BTUdown to −13°FZones1 zoneCoverageUp to, sq ftup to 1,100 sq ftSEER2217-Yrwarranty230VFrom $2,417.76 /- 359 in stock
- Free shipping
- Free gift
- Refrigerant R454B
Cooper & Hunter Hyper Heat 24,000 BTU Single Zone Ceiling Cassette, 230V, R454B - Ductless Mini Split Air Conditioner Heat PumpCoolingCooling, BTU24,000 BTUup to 122°FHeatingHeating, BTU26,000 BTUdown to −22°FZones1 zoneCoverageUp to, sq ftup to 1,100 sq ftSEER2217-Yrwarranty230VFrom $2,944.32 /- 233 in stock
- Free shipping
- Free gift
- Refrigerant R454B
Cooper & Hunter 28,000 BTU 3-Zone 9k+9k+12k Concealed Duct, 230V, R454B - Ducted Mini Split Air Conditioner Heat PumpCoolingCooling, BTU28,000 BTUup to 122°FHeatingHeating, BTU27,000 BTUdown to −13°FZones3 zonesCoverageUp to, sq ftup to 1,250 sq ftSEER2217-Yrwarranty230VFrom $4,448.16 /- 476 in stock
- Free shipping
- Free gift
- Refrigerant R454B
Cooper & Hunter 28,000 BTU 3-Zone 9k+12k+12k Concealed Duct, 230V, R454B - Ducted Mini Split Air Conditioner Heat PumpCoolingCooling, BTU28,000 BTUup to 122°FHeatingHeating, BTU27,000 BTUdown to −13°FZones3 zonesCoverageUp to, sq ftup to 1,250 sq ftSEER2217-Yrwarranty230VFrom $4,448.16 /- 476 in stock
- Free shipping
- Free gift
- Refrigerant R454B
Cooper & Hunter 28,000 BTU 3-Zone 12k+12k+12k Concealed Duct, 230V, R454B - Ducted Mini Split Air Conditioner Heat PumpCoolingCooling, BTU28,000 BTUup to 122°FHeatingHeating, BTU27,000 BTUdown to −13°FZones3 zonesCoverageUp to, sq ftup to 1,250 sq ftSEER2217-Yrwarranty230VFrom $4,448.16 /- 476 in stock
- Free shipping
- Free gift
- Refrigerant R454B
Cooper & Hunter 28,000 BTU 3-Zone 9k+9k+9k Concealed Duct, 230V, R454B - Ducted Mini Split Air Conditioner Heat PumpCoolingCooling, BTU28,000 BTUup to 122°FHeatingHeating, BTU27,000 BTUdown to −13°FZones3 zonesCoverageUp to, sq ftup to 1,200 sq ftSEER2217-Yrwarranty230VFrom $4,448.16 /- 476 in stock
- Free shipping
- Free gift
- Refrigerant R454B
Cooper & Hunter 28,000 BTU 3-Zone 6k+6k+6k Concealed Duct, 230V, R454B - Ducted Mini Split Air Conditioner Heat PumpCoolingCooling, BTU28,000 BTUup to 122°FHeatingHeating, BTU27,000 BTUdown to −13°FZones3 zonesCoverageUp to, sq ftup to 750 sq ftSEER2217-Yrwarranty230VFrom $4,448.16 /- 476 in stock
- Free shipping
- Free gift
- Refrigerant R454B
Cooper & Hunter 28,000 BTU 3-Zone 6k+6k+9k Concealed Duct, 230V, R454B - Ducted Mini Split Air Conditioner Heat PumpCoolingCooling, BTU28,000 BTUup to 122°FHeatingHeating, BTU27,000 BTUdown to −13°FZones3 zonesCoverageUp to, sq ftup to 900 sq ftSEER2217-Yrwarranty230VFrom $4,448.16 /- 476 in stock
- Free shipping
- Free gift
- Refrigerant R454B
Cooper & Hunter 28,000 BTU 3-Zone 6k+6k+12k Concealed Duct, 230V, R454B - Ducted Mini Split Air Conditioner Heat PumpCoolingCooling, BTU28,000 BTUup to 122°FHeatingHeating, BTU27,000 BTUdown to −13°FZones3 zonesCoverageUp to, sq ftup to 1,050 sq ftSEER2217-Yrwarranty230VFrom $4,448.16 /- 476 in stock
- Free shipping
- Free gift
- Refrigerant R454B
Cooper & Hunter 28,000 BTU 3-Zone 6k+9k+9k Concealed Duct, 230V, R454B - Ducted Mini Split Air Conditioner Heat PumpCoolingCooling, BTU28,000 BTUup to 122°FHeatingHeating, BTU27,000 BTUdown to −13°FZones3 zonesCoverageUp to, sq ftup to 1,050 sq ftSEER2217-Yrwarranty230VFrom $4,448.16 /- 476 in stock
- Free shipping
- Free gift
- Refrigerant R454B
Cooper & Hunter 28,000 BTU 3-Zone 6k+9k+12k Concealed Duct, 230V, R454B - Ducted Mini Split Air Conditioner Heat PumpCoolingCooling, BTU28,000 BTUup to 122°FHeatingHeating, BTU27,000 BTUdown to −13°FZones3 zonesCoverageUp to, sq ftup to 1,200 sq ftSEER2217-Yrwarranty230VFrom $4,448.16 /- 476 in stock
- Free shipping
- Free gift
- Refrigerant R454B
Cooper & Hunter 28,000 BTU 3-Zone 6k+12k+12k Concealed Duct, 230V, R454B - Ducted Mini Split Air Conditioner Heat PumpCoolingCooling, BTU28,000 BTUup to 122°FHeatingHeating, BTU27,000 BTUdown to −13°FZones3 zonesCoverageUp to, sq ftup to 1,250 sq ftSEER2217-Yrwarranty230VFrom $4,448.16 /- 476 in stock
- Free shipping
- Free gift
- Refrigerant R454B
Cooper & Hunter 28,000 BTU 3-Zone 6k+6k+18k Concealed Duct, 230V, R454B - Ducted Mini Split Air Conditioner Heat PumpCoolingCooling, BTU28,000 BTUup to 122°FHeatingHeating, BTU27,000 BTUdown to −13°FZones3 zonesCoverageUp to, sq ftup to 1,250 sq ftSEER2217-Yrwarranty230VFrom $4,574.88 /- 525 in stock
- Free shipping
- Free gift
- Refrigerant R454B
Cooper & Hunter 28,000 BTU 3-Zone 6k+9k+18k Concealed Duct, 230V, R454B - Ducted Mini Split Air Conditioner Heat PumpCoolingCooling, BTU28,000 BTUup to 122°FHeatingHeating, BTU27,000 BTUdown to −13°FZones3 zonesCoverageUp to, sq ftup to 1,250 sq ftSEER2217-Yrwarranty230VFrom $4,574.88 /- 525 in stock
- Free shipping
- Free gift
- Refrigerant R454B
Cooper & Hunter 28,000 BTU 3-Zone 6k+12k+18k Concealed Duct, 230V, R454B - Ducted Mini Split Air Conditioner Heat PumpCoolingCooling, BTU28,000 BTUup to 122°FHeatingHeating, BTU27,000 BTUdown to −13°FZones3 zonesCoverageUp to, sq ftup to 1,250 sq ftSEER2217-Yrwarranty230VFrom $4,574.88 /- 525 in stock
- Free shipping
- Free gift
- Refrigerant R454B
Cooper & Hunter 28,000 BTU 3-Zone 9k+9k+18k Concealed Duct, 230V, R454B - Ducted Mini Split Air Conditioner Heat PumpCoolingCooling, BTU28,000 BTUup to 122°FHeatingHeating, BTU27,000 BTUdown to −13°FZones3 zonesCoverageUp to, sq ftup to 1,250 sq ftSEER2217-Yrwarranty230VFrom $4,574.88 /- 525 in stock
- Free shipping
- Free gift
- Refrigerant R454B
Cooper & Hunter 28,000 BTU 3-Zone 6k+6k+24k Concealed Duct, 230V, R454B - Ducted Mini Split Air Conditioner Heat PumpCoolingCooling, BTU28,000 BTUup to 122°FHeatingHeating, BTU27,000 BTUdown to −13°FZones3 zonesCoverageUp to, sq ftup to 1,250 sq ftSEER2217-Yrwarranty230VFrom $4,970.88 /- 571 in stock
- Free shipping
- Free gift
- Refrigerant R454B
Cooper & Hunter 28,000 BTU 4-Zone 6k+6k+6k+6k Concealed Duct, 230V, R454B - Ducted Mini Split Air Conditioner Heat PumpCoolingCooling, BTU28,000 BTUup to 122°FHeatingHeating, BTU27,000 BTUdown to −13°FZones4 zonesCoverageUp to, sq ftup to 1,000 sq ftSEER2217-Yrwarranty230VFrom $5,179.68 /- 379 in stock
- Free shipping
- Free gift
- Refrigerant R454B
Cooper & Hunter 28,000 BTU 4-Zone 6k+6k+6k+9k Concealed Duct, 230V, R454B - Ducted Mini Split Air Conditioner Heat PumpCoolingCooling, BTU28,000 BTUup to 122°FHeatingHeating, BTU27,000 BTUdown to −13°FZones4 zonesCoverageUp to, sq ftup to 1,150 sq ftSEER2217-Yrwarranty230VFrom $5,179.68 /- 379 in stock
- Free shipping
- Free gift
- Refrigerant R454B
Cooper & Hunter 28,000 BTU 4-Zone 6k+6k+6k+12k Concealed Duct, 230V, R454B - Ducted Mini Split Air Conditioner Heat PumpCoolingCooling, BTU28,000 BTUup to 122°FHeatingHeating, BTU27,000 BTUdown to −13°FZones4 zonesCoverageUp to, sq ftup to 1,250 sq ftSEER2217-Yrwarranty230VFrom $5,179.68 /- 379 in stock
- Free shipping
- Free gift
- Refrigerant R454B
Cooper & Hunter 28,000 BTU 4-Zone 6k+6k+9k+9k Concealed Duct, 230V, R454B - Ducted Mini Split Air Conditioner Heat PumpCoolingCooling, BTU28,000 BTUup to 122°FHeatingHeating, BTU27,000 BTUdown to −13°FZones4 zonesCoverageUp to, sq ftup to 1,250 sq ftSEER2217-Yrwarranty230VFrom $5,179.68 /- 379 in stock
- Free shipping
- Free gift
- Refrigerant R454B
Cooper & Hunter 28,000 BTU 4-Zone 6k+6k+9k+12k Concealed Duct, 230V, R454B - Ducted Mini Split Air Conditioner Heat PumpCoolingCooling, BTU28,000 BTUup to 122°FHeatingHeating, BTU27,000 BTUdown to −13°FZones4 zonesCoverageUp to, sq ftup to 1,250 sq ftSEER2217-Yrwarranty230VFrom $5,179.68 /- 379 in stock
- Free shipping
- Free gift
- Refrigerant R454B
Cooper & Hunter 28,000 BTU 4-Zone 6k+9k+9k+9k Concealed Duct, 230V, R454B - Ducted Mini Split Air Conditioner Heat PumpCoolingCooling, BTU28,000 BTUup to 122°FHeatingHeating, BTU27,000 BTUdown to −13°FZones4 zonesCoverageUp to, sq ftup to 1,250 sq ftSEER2217-Yrwarranty230VFrom $5,179.68 /- 379 in stock
- Free shipping
- Free gift
- Refrigerant R454B
Cooper & Hunter 28,000 BTU 4-Zone 6k+9k+9k+12k Concealed Duct, 230V, R454B - Ducted Mini Split Air Conditioner Heat PumpCoolingCooling, BTU28,000 BTUup to 122°FHeatingHeating, BTU27,000 BTUdown to −13°FZones4 zonesCoverageUp to, sq ftup to 1,250 sq ftSEER2217-Yrwarranty230VFrom $5,179.68 /- 379 in stock
- Free shipping
- Free gift
- Refrigerant R454B
Cooper & Hunter 28,000 BTU 4-Zone 9k+9k+9k+9k Concealed Duct, 230V, R454B - Ducted Mini Split Air Conditioner Heat PumpCoolingCooling, BTU28,000 BTUup to 122°FHeatingHeating, BTU27,000 BTUdown to −13°FZones4 zonesCoverageUp to, sq ftup to 1,250 sq ftSEER2217-Yrwarranty230VFrom $5,179.68 /- 379 in stock
- Free shipping
- Free gift
Sold out Refrigerant R410A
OLMO Sierra 36,000 BTU 3-Zone 9k+12k+18k Wall Mount, 230V, R410A - Ductless Mini Split Air Conditioner Heat PumpCoolingCooling, BTU36,000 BTUup to 115°FHeatingHeating, BTU36,000 BTUdown to −13°FZones3 zonesCoverageUp to, sq ftup to 1,650 sq ftSEER2215-Yrwarranty230V$2,255.70From $2,097.80Save $157.90 (7% off) /- Sold out
- Free shipping
- Free gift
Sold out Refrigerant R410A
Cooper & Hunter Olivia 48,000 BTU 3-Zone 9k+18k+24k Wall Mount, 230V, R410A - Ductless Mini Split Air Conditioner Heat PumpCoolingCooling, BTU48,000 BTUup to 122°FHeatingHeating, BTU48,000 BTUdown to −13°FZones3 zonesCoverageUp to, sq ftup to 2,200 sq ftSEER223.47-Yrwarranty230V$6,348.96 /- Sold out
- Free shipping
- Free gift
Sold out Refrigerant R410A
Cooper & Hunter Olivia 12,000 BTU Single Zone Wall Mount, 230V, R410A - Ductless Mini Split Air Conditioner Heat PumpCoolingCooling, BTU12,000 BTUup to 122°FHeatingHeating, BTU12,000 BTUdown to −13°FZones1 zoneCoverageUp to, sq ftup to 550 sq ftSEER223.17-Yrwarranty230VFrom $630.00 /- Sold out
- Free shipping
Sold out Refrigerant R410A
OLMO Sierra 18,000 BTU 2-Zone 9k+12k Wall Mount, 230V, R410A - Ductless Mini Split Air Conditioner Heat PumpCoolingCooling, BTU18,000 BTUup to 115°FHeatingHeating, BTU18,000 BTUdown to −13°FZones2 zonesCoverageUp to, sq ftup to 800 sq ftSEER2215-Yrwarranty230V$1,000.24From $930.22Save $70.02 (7% off) /- Sold out
- Free shipping
Sold out Refrigerant R410A
OLMO Sierra 18,000 BTU 2-Zone 9k+9k Wall Mount, 230V, R410A - Ductless Mini Split Air Conditioner Heat PumpCoolingCooling, BTU18,000 BTUup to 115°FHeatingHeating, BTU18,000 BTUdown to −13°FZones2 zonesCoverageUp to, sq ftup to 800 sq ftSEER2215-Yrwarranty230V$1,172.38From $1,090.31Save $82.07 (7% off) /- Sold out
- Free shipping
Sold out Refrigerant R410A
OLMO Sierra 18,000 BTU 2-Zone 12k+12k Wall Mount, 230V, R410A - Ductless Mini Split Air Conditioner Heat PumpCoolingCooling, BTU18,000 BTUup to 115°FHeatingHeating, BTU18,000 BTUdown to −13°FZones2 zonesCoverageUp to, sq ftup to 800 sq ftSEER2215-Yrwarranty230V$1,181.14From $1,098.46Save $82.68 (7% off) /- Sold out
- Free shipping
Sold out Refrigerant R410A
Cooper & Hunter Olivia 24,000 BTU Single Zone Wall Mount, 230V, R410A - Ductless Mini Split Air Conditioner Heat PumpCoolingCooling, BTU24,000 BTUup to 122°FHeatingHeating, BTU24,000 BTUdown to −13°FZones1 zoneCoverageUp to, sq ftup to 1,100 sq ftSEER2217-Yrwarranty230VFrom $1,112.00 /- Sold out
- Free shipping
Sold out Refrigerant R410A
OLMO Sierra 36,000 BTU 3-Zone 12k+12k+12k Wall Mount, 230V, R410A - Ductless Mini Split Air Conditioner Heat PumpCoolingCooling, BTU36,000 BTUup to 115°FHeatingHeating, BTU36,000 BTUdown to −13°FZones3 zonesCoverageUp to, sq ftup to 1,650 sq ftSEER2215-Yrwarranty230V$2,200.22From $1,650.16Save $550.06 (25% off) /- Sold out
- Free shipping
Latest News
Guides & articles for this category
Ducted Mini Split Airflow Specs: Real Static Pressure Data
HVAC Design Reference Ducted Mini Split Static Pressure & Airflow: What the Spec Sheets Don't Tell You Duct Design Mechanics System Diagnostics Si...
Read article →
Concealed Ducted Mini Splits: The Architect's Standard for Invisible Climate Control
Architectural Integration Concealed Ducted Mini Split: Hidden Comfort for Modern Interiors I still remember a brutal custom build back in 2024. The cli...
Read article →
Mini Splits for Older Homes Without Ductwork: The Complete 2026 Retrofit Guide
The 2026 Retrofit Guide Mini Splits for Older Homes Without Ductwork Look, I love old homes. I’ve spent more weekends than I can count admiring solid...
Read article →
