Replacement parts for Sequenza, a system designed for immunolabeling of sections on glass slides. Ideal for both benchtop techniques and microwave-assisted applications. This system maximizes the results produced up to 50 slides per run, maintaining both consistency and quality. The Slide Rack holds 10 glass slides, with a coverplate forming a capillary gap between the slide and the plate. A hopper easily dispenses the reagent into the gap formed between it and the coverplate. The Slide Rack holds 10 glass slides.