OPTUM Air Compressor Rebuild KitsDepending on use, OPTUM air compressors will eventually need to be rebuilt. This is a very simple and inexpensive way to bring your air compressor back to new life. All you need are a couple standard tools to get the job done. The OPTUM rebuild kit includes 2 chamber blocks with gaskets, diaphragms and safety screw. Rebuild Time Is Generally Under 20 Minutes Simple Household Tools Is All That's Required All rebuild kits are not returnable and non