Referring to the example shown, the reagent cartridge 112 is receivable within a cartridge receptacle 124 of the system 100 and may include reagent reservoirs 126, a body 128, one or more valves 121, and/or fluidic lines 122. The reagent reservoirs 126 may contain fluid (e.g., reagent and/or another reaction component) and the valves 121 may be selectively actuatable to control the flow of fluid through the fluidic lines 122. One or more of the valves 121 may be implemented by a rotary valve, a pinch valve, a flat valve, a solenoid valve, a check valve, a piezo valve, etc. The body 128 may be formed of solid plastic using injection molding techniques and/or additive manufacturing techniques. In some examples, the reagent reservoirs 126 are integrally formed with the body 128. In other examples, the reagent reservoirs 126 are separately formed and coupled to the body 128. In another example, the reagent cartridge 112 may not be included and the one or more valves 129 and other associated components may be integral to the system 100. In such an example, the reagent reservoirs 126 may be fluidly coupled to the one or more valves 121 via, for example, fluidic lines.