The new ISOLSPRING®-BIG range is a product with strong resilient properties. The spring is used for vibration and structure-borne sound insulation of ventilation and air-conditioning systems and machines such as compact ventilation units, chillers, recoolers, heat pumps, emergency power generators, IT data servers, pumps, etc. The price/performance ratio for this high-quality coated spring is extremely advantageous. The price/performance ratio for this high-quality coated spring is extremely advantageous.