One pack covers half of the inside of the bucket (2 sections) and (2) packs (4 sections) will cover the entire inside 360º.
The Dirt Lock Scrub Wall brings the common sense of the base bucket insert up to the top of your wash bucket, trapping and pulling down any debris that enters. This system arrives in a 2-pack to cover half of the wall of your bucket, or you can purchase (2) 2-packs to get full bucket coverage. Tabs on the base of the wall fix onto a DirtLOCK insert, and each section of the 'wall' has a tab to keep it from moving around.
This is getting very picky when it comes to your wash solution, and this is simply everything you can do to keep debris from coming into contacting your paint. Overall I will be using this myself to maintain a ceramic coated vehicle and it's a perfect fit into a conventional bucket.
Fitment in a standard GHÖST bucket is not ideal. The GHÖST XL is the bucket you will want to select.