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TOSOT 18,000 BTU 2 Zone Mini Split Air Conditioner 21 SEER2, Cosmo Series

Based on 10 reviews
Condition: New
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$1,424.05
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Availability: In Stock.
Fulfilled by Sain Store

Arrives Thursday, Nov 5
Order within 16 hours and 47 minutes

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At a glance

Condition
New
Set
Dual Zone: 18,000 BTU (9K+9K)
Capacity
1.5 tons
Dimensions
32.4"D x 13.9"W x 21.65"H
Color
White
Cooling Power
18000 british thermal units
Voltage
230 volts
In the box
Outdoor unit2 indoor units16.4 ft copper line set

Features 7

  • DUALZONE INDEPENDENT TEMPERATURE CONTROL: 18,000 BTU outdoor condenser powers two separate 9,000 BTU indoor air handlers; set custom temperature from 61 F to 86 F for each room; ideal paired solution for bedrooms home offices and other twozone household spaces
  • ENERGYSTAR HIGHEFFICIENCY OPERATION: rated 21 SEER2 and 10 HSPF2 inverter heat pump system; delivers up to 24 % energy savings versus standard 16 SEER2 units; cuts monthly utility costs; qualifies for applicable federal tax rebates
  • WIDERANGE ALLWEATHER PERFORMANCE: variablespeed inverter compressor supports reliable operation from 22 F heating up to 118 F cooling; delivers stable cooling for extreme hot climates and consistent heating in frigid cold regions; builtin intelligent defrost preserves heating efficiency in lowtemperature conditions
  • PRECHARGED R32 REFRIGERANT & INSTALL REQUIREMENTS: preloaded R32 refrigerant; includes 16 ft copper line set with standard 1/4" & 3/8" outer dimension copper pipes; maximum 20A fuse size; mandatory lineset vacuuming during installation; refrigerant adjustment required if lineset length gets modified; certified professional HVAC installation required; not intended for DIY setup

Description

One outdoor unit supports up to four wall-mounted indoor units (9K/12K/18K/24K BTU models), allowing independent temperature and mode control for different rooms. The advanced inverter compressor fine-tunes performance for whisper-quiet operation, producing sound levels as low as 22 dB to 36 dB, making it ideal for bedrooms, home offices, nurseries, and other quiet areas where noise matters. The dehumidification function removes excess moisture from the air, improving indoor air quality. It creates a fresher and more comfortable space, making living space more enjoyable year-round. TOSOT Cosmo series multi-zone mini-split system offers a wide range of configurations to suit different needs. Suitable for multi-room temperature control.

Specs 32

Brand TOSOT
Capacity 1.5 tons
Cooling Power 18000 british thermal units
Special Feature Fast Cooling, Google Assistant, Heating & Cooling Function, Inverter Compressor, WiFi Enabled
Product Dimensions 32.4"D x 13.9"W x 21.65"H
Start year 2018
Seasonal Energy Efficiency Ratio (SEER) 21
Color White

Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, Nov 5

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Leasing options through Acima may also be available during checkout.

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Top Amazon Reviews


Great Multi Zone Mini Splits!
Set name: Tri Zone: 36,000 BTU (12K+12K+12K)
So far so good! These seem to be very well built units. They’re doing a great job cooling in the summer,and having them for back up heat in the winter is also terrific. I did the installation which wasn’t difficult, and had a HVAC friend come by and do the final connection to the unit and startup.
Reviewed in the United States on September 12, 2026 by Paul

The best value for the best quality
Set name: Dual Zone: 36,000 BTU (12K+24K)
Arrived ten days early. Just started the installation. More to follow. The indoor units are quite attractive. Waiting for wall mounting. More to follow
Reviewed in the United States on May 23, 2026 by John Davis

Split air-conditioner
Set name: Tri Zone: 36,000 BTU (12K+12K+12K)
I have this since summer, at summer time we are happy using it because it helps a lot to make my 3 rooms cold, but now that is winter the problem is you can’t used heater while other room is using air conditioner it gives you error, and even we reset still give us error so I need to wait until tomorrow and will work. Installing it is not hard because we got someone who knows how to install this kind of product, the energy is not bad, I don't think our bill went up high when we install this. It didn’t take so much space on our wall. ... show more
Reviewed in the United States on January 9, 2026 by BunsoLyn18

Works great and great value.
Set name: Dual Zone: 36,000 BTU (12K+24K)
Very happy with this unit. I heat and cool two separate rooms. A 950 ft shop with 12' ceilings and a 450 sq ft apartment. Both rooms are well insulated. I was using a wood stove for the shop. This unit was so efficient I can heat both for the price of just heating the apartment with a ptac unit.
Reviewed in the United States on March 7, 2026 by kingbling

The best buy in air conditioning Ive
Set name: Tri Zone: 36,000 BTU (12K+12K+12K)
I don't know why I waited so long. The A/C dispensing units work better than any home unit I have ever had. I would recommend this product over-and-over-again. I can control the temperature almost instantly, it's incredible!!
Reviewed in the United States on August 17, 2025 by Jack Heller

El producto es muy bueno
Set name: Quad Zone: 36,000 BTU (9K+9K+9K+9K)
El producto en el frío calienta súper bien la habitación no puedo quejarme vivo frente a un lago en NJ enero se congela y el mini esplit de 4 zonas de 36000 btu cada unidad de 9000 btu por habitación calienta súper bien, las instrucciones para instalarlo son muy bien explicadas si eres un poco aventurero con las indicaciones tú mismo lo puedes instalar nota tienes que usar cable número 8 y un breake número 40 regular porque si usas el que es seifti se dispara al poner la calificación solo funciona en frío pero si poner el regular funciona de lo mejor y es muy silencioso n pocas palabras me siento feliz de aver comprado este producto. ... show more
Reviewed in the United States on February 8, 2025 by Pedro Monge

I wouldn’t recommend having bought one myself and work in the hvac trade
Set name: Quad Zone: 36,000 BTU (9K+9K+9K+9K)
This company does not supply on the phone tech support it’s through email and it takes forever. On top of that they DO NOT supply repair parts. If something fails, you will need the entire unit. Again they don’t parts at all.. these cannot be repaired. Buy a Senville or another brand that offers parts and tech support. Tosot fails at both of these. Don’t buy. ... show more
Reviewed in the United States on July 24, 2025 by Figs
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