Air Con Surveying

1 x SCM60ZG Condensing unit
3 x SKM25ZG Indoor Unit's

Twin City Pricing:
$2670

providing:
G23 copper piping
Class 0    0.375 Insultation
16 mm PVC
maximum 2 trips installations

Warranty
Workmanship x 1 year
Mitsubishi Spare Part x 1 year
Motor x 5 year

If need to have Class 0   0.5 insulation, need to pay $80x 3 more, but twin city commented that it is not nesscary for BTO.
-----
Dr Cool Pricing:
$2800

providing
G23 copper piping
class 0   0.375 Insulation
13 mm PVC

Warranty:
Workmanship x 1 year
Motor 5 year

If need 16 mm PVC and Class 0  0.5 Insultation, need to pay $50 x 3.
-----
Kaisoon Group Pricing: (review not so good...)
$2580

providing
G22/23 copper piping
Class 1  0.5 insultation
16 mm PVC

Warranty:
Workmanship x 1 year
Motor 5 year

If need additional one more trip need top up $150
-----
Harvest Air Pricing:
$2699

providing
G23 copper piping
Class 0 0.5 insultation
16 mm PVC
2 trips

Warranty:
workmanship and parts x 1 year
Motor 5 years
-----

Supereme Air Conditioner pricing:
$2880

providing
G23 copper piping
Class 0 0.375 insultation
16 mm PVC
1 trip

Warranty:
workmanship x 2 years
parts x 1 year
motor 5 years

Claimed that some parts of insulation will be 0.5 and the rest will be 0.375. Additional trip another $100