1/4" & 3/8"
Copper Line Length
Drain Hose
Signal Cable
Weight
Package Dimensions
16 ft
19.6 ft
19.6 ft
8.4 lbs
22.0 × 3.9 × 22.0 in
25 ft
19.6 ft
26.2 ft
12.0 lbs
22.8 × 3.9 × 22.8 in
50 ft
50 ft
50 ft
20.5 lbs
19.7 × 20.1 × 7.1 in
Compatible Models: Multi-Zone Indoor Unit: 9k, 12k Cosmo (Single-Zone): TST-SU-C9K11, T
4.5
24 ratings
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4
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1
Essential for my specific application. I used the mini-split to replace an existing, 22 -yr-old, failed unit that was on an inside wall. This 50' extension allowed the wall unit (head unit) evaporator to be sixty feet away from the outside compressor.
The line set's copper is flared perfectly, has the electrical/communications cable included, and with connectors sold separately, mates perfectly with the existing, 16' line set. I needed every foot of the two line sets connected together. It all worked perfectly. And there was enough R-32 refrigerant in the compressor to fill all lines.
D
Dr · August 26, 2026
The unit and all the components arrived quickly and I was able to install it fairly easily with the provided instructions. A QR code to the install videos that are available might be a suggestion. As far as the operation of the unit, it works great!
J
jad · August 18, 2026
Great line set. I put a 24000 btu Tosot in the house to replace an older unit that went bad. Also put a 12000 BTU unit in my wood shop. Both Tosot and this was my first install.