O-ring, 15 x 2.5 mm – Viton, Part# 4070259 – vacstellar

this Viton O-ring (Part #4070259). Measuring 15 mm inside diameter by 2.5 mm thick, this O-ring creates a dependable seal between pump parts. Made from Viton, a high-performance material that resists heat, oil, and chemicals. Fits DUO2.5, DUO5, DUO10, DUO20, UNO30M, and other models . This O-ring is a direct replacement. It fits right into the groove. No cutting or gluing is needed. Just place it in position and assemble the parts.This O-ring has an inside diameter of 15 mm and a thickness of 2.5 mm. That is the perfect size for several Pfeiffer pump models. It fits snugly in its groove. When you tighten the parts together, it compresses just enough to create a leak-proof seal.