Hose options are in order from lowest working PSI to highest working PSI
ISO 18752 constant pressure hose
SAE 100R17
3,250 max working pressure
Working PSI remains the same regardless of hose size; used to simplify hose selection for equipment
Most common
SAE 100R19
ISO 18752 constant pressure hose
4,000 max working pressure
Working PSI remains the same regardless of hose size; used to simplify hose selection for equipment
ISO 18752 constant pressure hose
5,000 max working pressure
Working PSI remains the same regardless of hose size; used to simplify hose selection for equipment