Colku GCA28F Inverter 100–120V RV Rooftop Air Conditioner – Powerful, Quiet, and Energy-Efficient

The Customs GCA28F is a premium 100–120V inverter rooftop air conditioner engineered for motorhomes, caravans, and campervans. Delivering an impressive 3530W (12000 BTU) of cooling power, it’s one of the most advanced and efficient RV air conditioners Colku has ever built.

At its heart lies a GMCC DC inverter compressor that features stepless speed regulation for smoother performance and significantly reduced vibration. Combined with Colku’s custom compressor control box, it minimizes annoying resonance, ensuring whisper-quiet operation while maintaining superior cooling efficiency.

The microchannel condenser enhances heat exchange efficiency and prevents ice formation during heating mode. Whether you need fast cooling in summer or warmth during winter, the GCA28F adapts effortlessly to your comfort needs.

Designed for spaces of about 200–240 square feet, this unit cools down your RV interior faster and more evenly than conventional rooftop air conditioners. Its axial-flow inverter fan motor delivers strong airflow at low noise levels, ensuring peace and comfort during travel or rest.

Built to perform, the GCA28F uses vehicle-standard flexible hoses to resist vibration and prevent leaks—making it as durable as it is efficient.

Key Features

① GMCC DC inverter compressor – Stepless speed control with less vibration for smoother operation.
② Colku-developed compressor control box – Reduces vibration and resonance for quieter performance.
③ Microchannel condenser – Improves heat exchange efficiency and prevents icing when heating.
④ Vehicle-grade soft hoses – Enhance vibration resistance and eliminate leakage risks.
⑤ Axial-flow inverter fan motor – Lower noise, higher efficiency, and stronger airflow.
⑥ Multi-functional operation – Offers 4 modes: Automatic, Cooling, Dehumidification, Heating, and Ventilation.

👉 Customs GCA28F brings faster cooling, quieter operation, and maximum energy efficiency to your RV, ensuring total comfort wherever the road takes you — in summer or winter.