Download the Pipe Kitbash.zip folder and unzip.  The folder inside contains all the model and texture files.  4K textures are included extra as an optional download which you can use to replace the 2k textures if you need additional texture resolution.

To work with the kitbash set, you can either open one of the Blend files in the folder which contain all of the pipes, or you can append individual pipes to a new scene by appending them from the blend files.  Just go to File and Append, select one of the Blend files, then go to the object folder and then simply choose which pipe you want to add to your scene.  A picture of all the pieces is included in the folder.

There are two Blend files in the folder.  Pipe_Kitbash.blend contains all of the pipes and all pieces are located around the center of the world axis.  The file Pipe_Kitbash_Distributed.blend has all of the pieces spread out into their own space.