Looking for a System 4 aircon in Singapore? At Blossom Aircon, we offer a wide range of new and reconditioned System 4 air conditioners that can cool up to four rooms. Choose from popular combinations including 10K + 10K + 10K + 13K BTU, 10K + 10K + 10K + 18K BTU, 10K + 10K + 13K + 13K BTU, 10K + 10K + 13K + 18K BTU, and 10K + 10K + 10K + 24K BTU—each configuration tailored to suit different room sizes and cooling needs.

What Is a System 4 Aircon?

A System 4 aircon connects one outdoor unit with four indoor units. It can provide effective cooling for 4 places at the same time, such as bedrooms, studies, and living areas. Common BTU combinations can be:

  • 10K + 10K + 10K + 13K BTU – great for three small rooms and one medium-sized room
  • 10K + 10K + 10K + 18K BTU – ideal for three small rooms and one larger room
  • 10K + 10K + 13K + 13K BTU – ideal for two small and two medium-sized rooms
  • 10K + 10K + 13K + 18K BTU – perfect for a mix of small, medium, and large spaces
  • 10K + 10K + 10K + 24K BTU – designed for three smaller rooms and one large living area

Why Buy from Blossom Aircon?

  • Both brand new and reconditioned units are available
  • Available in all BTU combinations
  • Professional installation by expert technicians
  • Transparent pricing; no hidden charges
  • Add-on services available -chemical cleaning, regular servicing, and gas top-up
  • Fast local service throughout Singapore

Our Top System 4 Aircon Brands

We have leading brands in Singapore –

  • Daikin,
  • Mitsubishi Electric,
  • Panasonic,
  • LG,
  • Midea,
  • Toshiba,
  • and more.

Whether you’re looking for a high-efficiency Daikin inverter, a durable Mitsubishi, or a cost-effective Midea unit, we have the right match for you.

New versus Reconditioned System 4 Aircon

Our new units come with full manufacturer warranties and the latest energy-saving technology.

Reconditioned units are professionally cleaned, tested, and serviced to deliver dependable performance—available across all the BTU configurations.

Explore Our System 4 Aircon

Browse our available System 4 aircon setups to find the perfect fit for your home. If you’re unsure which configuration suits your needs, contact our team for expert advice.

  • Daikin System 4 Aircon (Used)

    Price range: $1,650.00 through $2,250.00
  • Fujitsu System 4 Aircon (Used)

    Price range: $1,550.00 through $2,000.00
  • LG System 4 Aircon (Used)

    Price range: $1,550.00 through $2,000.00
  • Midea System 4 Aircon (Used)

    Price range: $1,550.00 through $2,000.00
  • Mitsubishi System 4 Aircon (Used)

    Price range: $1,650.00 through $2,250.00
  • Panasonic System 4 Aircon (Used)

    Price range: $1,550.00 through $2,000.00
  • Samsung System 4 Aircon (Used)

    Price range: $1,550.00 through $2,000.00
  • Toshiba System 4 Aircon (Used)

    Price range: $1,550.00 through $2,000.00