so do anyone know where to get replacement spray bars, mines is cracked or cracking.
Why not make one? CPVC at Lowes/Home Depot, a drill, some cement, a couple of hose barbs and maybe a ball valve. Get fancy and spray paint it whatever color you want (I like black) with Krylon Fusion. This way you can customize it to fit your tank perfectly and get what YOU want rather than what comes in the box. Sorted.