Update: Ordered Sunday night. Tracking number on Monday. Received Wednesday.
Before I ordered it, I read reviews at this site. Some have mentioned that the inner diameter isn't centered, that edges on the head were "rough". I have none of those issues. All the edges are very smooth and clean, the inner diameter is centered and clean, the threading is great. I'm super happy with my purchase.
I ordered the replacement in-line head for a March Pump, but if decide to add more pumps to my system, I'll order from Chugger. Very happy with this purchase, my brew rig just leveled up.