4 × Reprocessor Casing + 2 × any Cyanite Ingot + 2 × any Redstone Dust + Sticky Piston → Reprocessor Waste Injector
No recipe of Extreme Reactors 1.21.1-2.4.28 uses Reprocessor Waste Injector.
Textures, models and item names © ZeroNoRyouki and the Extreme Reactors contributors (originally Big Reactors by Erogenous Beef).
Recipes, names and numbers are read from the mod files of Extreme Reactors 1.21.1-2.4.28 for Minecraft 1.21.1 (NeoForge). Not affiliated with the mod authors, Mojang or Microsoft.