Pinbluff- didn't see anything that resembles this part in those catalogs.
There was minimal damage to the piece, just a little bent. What happened is that the high pressure water forced the diaphram past the spring to the bottom of the passage. If I didn't notice it, I'd have 100% filtration by accident. haha
I fixed the part and tweeked it all back to proper shape and round. Reassembled the spring and diaphram. Should be fine to run, but I think I'll take everybody's advice and just install a freeze plug.
