This is a genuine manufacturer-approved component which is specially designed for Campbell Hausfeld air compressors. The purpose of a dipstick is to allow a user to check the oil level in your unit. It provides an identical replacement for a missing or a faulty assembly that was installed on a new unit, please make sure to check the appro...Read morepriate diagrams of your model for the correct location and application of this part. Keep in mind this high-quality item is made of durable plastic and is sold individually.