Model 3725i sample injectors for 1-10 cm I.D. HPLC columns combine the ease of use and versatility of Rheodynes analytical-scale injectors with the ability to handle large samples and high flow rates. Rugged and easily maintained, in a choice of stainless steel or PEEK flowpaths. Includes 10 mL sample loop, 1/8 in. fittings for all ports, 5cm large-bore syringe needle (16 gauge/0.65 in. OD) for rapid injection of large samples, needle port cleaner, two vent tubes, wrenches, mounting screws, and instructions.