As to standard barrier ac hose and reduced barrier ac hose, the inner diameter is same, the different is the outer diameter. Standard barrier ac hose has a bigger outer diameter than reduced barrier ac hose.

In addition to quality and compatibility, it is also important to consider the reputation of the manufacturer or retailer when purchasing cheap power steering hoses. Reputable brands and retailers are more likely to provide high-quality hoses that meet industry standards and specifications. By choosing hoses from trusted sources, you can have peace of mind knowing that you are getting a reliable and durable product for your vehicle.