I use Baldwin filters, we tested one at work and pressurised it to 1500 lbs before the seam came undone. The ryso sorry ryco we tested only got to 600 and it split.
What was the point of that?? It still shows the ryco goes many time beyond anything it will experience in a car.
I sometimes wonder how much of a contribution oil filters acutally make in keeping an engine running by doing what it does. It wasn't until the late '50's that car engines generally started using oil filters. Prior to that, there was no filtering of oil in the engine.