Ductless mini splits for less · 2026 buyer's guides & free sizing helpSize my system →
Zone AirTrue DIY

Zone Air DIY 3 Zone 36,000 BTU (12K+12K+12K) 230V

Three rooms on one condenser with pre-charged quick-connect line sets, no vacuum pump, and a warranty that stays valid on a homeowner install. Not sold on Amazon; ships direct.

12K + 12K + 12K heads24 SEER2230VPre-charged line setsHeats to −13°FUp to 1,800 sq ft

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MRCOOL

MRCOOL DIY Multi Zone 18K BTU 3 Zone (6K x 3)

The only MRCOOL three-zone kit listed on Amazon right now: three 6,000 BTU heads with 25 ft pre-charged line sets. New listing, no reviews yet.

6K + 6K + 6K heads18,000 BTU230VDIY pre-charged line sets

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Pioneer

Pioneer Multi-Split Kits (3 Zone)

Pioneer doesn't list its three-zone kits on Amazon; only single-zone Diamante units show up. Its pre-made multi-split kits are sold direct from Pioneer.

3 zone kitsFlare line setsPro install

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SenvilleMost reviewed

Senville Tri Zone 28,000 BTU Mini Split Heat Pump

The most-reviewed three-zone system on Amazon. Energy Star and AHRI certified, Alexa-compatible; flare line sets mean a tech or vacuum pump for the final connection.

3 zone28,000 BTU208-230VEnergy StarWorks with Alexa

4.5★ · 173 Amazon ratings

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Mitsubishi

Mitsubishi Multi-Zone (3 Zone)

No Mitsubishi three-zone systems are listed on Amazon. Mitsubishi multi-zone is sold and installed through Diamond Contractors; start on Mitsubishi's site.

3 zoneHyper-Heating availablePro install

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Fujitsu

Fujitsu Halcyon Multi-Zone (3 Zone)

Fujitsu doesn't sell complete Halcyon systems on Amazon; only filters and remotes show up. Buy through an authorized Fujitsu dealer.

3 zoneWall mountPro install

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Popularity is by Amazon rating count as of September 6, 2026. Prices and availability change on Amazon; we may earn a commission on qualifying purchases at no extra cost to you.

Not sure which size? Three 12,000 BTU heads cover roughly 1,200 to 1,800 sq ft; mix a 9K + 9K + 18K for two bedrooms and one open living space.

Free sizing calculator →Read the 3-zone DIY rankings →