The flexible expansion vase 7020970049 by DAIKIN is a versatile and efficient product designed for use with DAIKIN heat pumps and air conditioning systems. Its key features include flexibility, durability, and compatibility with DAIKIN products. The vase offers numerous benefits such as easy installation, improved system performance, and reduced maintenance costs. Its unique selling points lie in its ability to adapt to different system requirements and its contribution to overall system efficiency.