The **SCUBAPRO C200/C300/C350/C370 Repair Kit** (OEM Part Number: **11.361.045**) is a specialized, comprehensive annual maintenance package designed for servicing **SCUBAPRO C-Series second-stage diving regulators**. SCUBAPRO recommends a full overhaul and replacement of these core dynamic parts every year to guarantee structural safety, breathing performance, and underwater reliability. ### Compatibility & Hardware Design The kit provides complete cross-compatibility for four specific generations of SCUBAPRO balanced downstream second-stage regulators: * SCUBAPRO C200 * SCUBAPRO C300 * SCUBAPRO C350 * SCUBAPRO C370 ### What's Included in the Box A complete overhaul requires replacing all sealing surfaces, friction rings, and the dynamic high-wear valve seat. The package contents generally include: * **1x Dynamic Low-Pressure (LP) Seat:** The most critical elastomer in the regulator, part number **11.250.221**, which seals directly against the adjustable orifice to control airflow. * **1x Retaining Clip / Crescent Ring:** Part number **11.361.115**, used to lock internal components safely inside the barrel mechanism. * **1x Custom Decal / Logo Badge:** Part number **01.006.719**, to clean up or replace the external aesthetic badge. * **Assorted O-Rings:** Up to 15 specialized O-rings across roughly 7 to 8 dimensions, engineered to swap out every single interior and exterior seal on the mechanism (such as the hose connector, inhalation diaphragm seating rim, and dynamic balanced poppet seals). Included standard part numbers are **01.050.132**, **01.050.126**, **01.050.160**, **01.050.161**, **01.050.293**, **01.050.347**, and **01.050.351**. * **O-Ring Sizing Chart:** Printed on the backing package or insert cards to prevent sizing mistakes when matching small static seals during rebuild assembly.