Not all Pcv,s are the same, so choose wisely. You can use a stock Pcv , just put it in the middle of the run and use hose clamped on to the threaded end.
I pulled a valve off the shelf at the parts store based on it fitting my set up, but it did not work the same. It bipassed quite a bit of air at idle vs. the OEM valve that hardly bypasses any air at idle. I was able to tune the car this way and it actually worked really well for idle and start ups, but didn't realize how different it was from stock until I put one on. I wish I knew what actual Pcv I was using ( for what car).