Specific multi-year durability data for the Clean Flight Washer's internal brush system is not publicly detailed. However, the unit is constructed from durable plastic, and the 'Variable Hex Brush System' is engineered for repeated contact. Assuming average use, such as 100 rounds per year with typical golf bag jostling, the brush material is generally designed to withstand thousands of cleaning cycles. Prolonged exposure to abrasive elements like sand might accelerate material degradation over several years, but the core plastic housing is expected to endure.

Expert Analysis

Standard ABS or similar plastics, commonly used in outdoor accessories like the Clean Flight Washer, typically maintain structural integrity down to -20°C. While the material itself should not degrade at sub-zero temperatures, water within the unit could freeze. This ice formation may cause internal pressure, potentially affecting the brush mechanism's smooth operation or even leading to component stress if left unaddressed. For optimal performance and longevity, it is advisable to empty the unit and store it indoors when ambient temperatures consistently fall below 0°C.