Pro 6" Swivel Caster

The PolarCool Pro 6" Swivel Caster (Part No. 6422-6020) is a direct-replacement wheel designed for PolarCool 36" Pro portable evaporative air coolers. Built with solid rubber construction and a 360-degree swivel mechanism, this flat-free caster delivers superior maneuverability and reliable mobility across all types of terrain — from smooth warehouse floors to rough outdoor surfaces — making it ideal for warehouse cooling, outdoor cooling systems, and industrial air coolers that require frequent repositioning and precise placement. Key Features 6" solid rubber swivel caster with 360-degree rotation: no flats, no air required. Designed specifically for PolarCool 36" Pro models (the Pro uses two swivel and two rigid casters). Includes (1) swivel caster and all hardware specific to the 36" Pro. Durable construction withstands heavy loads and rough terrain in industrial and outdoor environments. Large wheel diameter provides smooth rolling and easy maneuverability for heavy-duty evaporati