Fluid Hoses: Recommended Sizes for different length
Following sizes of fluid hoses (general purpose) for low-pressure spray painting applications are recommended:
Length of hose:
0-6m (0-20′) = 1/4″ ID
3-10m (10-35′) = 3/8″ ID
10-30m (35-100′) = 1/2″ ID
30-60m (100-200′) = 3/4″ ID