Santech MT9635 A/C O-Ring Assortment Kit - Most Popular O-Rings

The Santech MT9635 is a comprehensive automotive air conditioning O-ring assortment designed for professional technicians and serious DIYers. This kit serves as Box 1 of the popular MT9250 Rapid-Pro IV Compressor Kit system, containing the most commonly needed O-rings for A/C service and repair work.

Key Features:

• Contains 36 different SKUs of the most popular O-ring sizes for automotive A/C systems
• Organized storage box keeps O-rings sorted and easily accessible during service work
• High-quality HNBR (Hydrogenated Nitrile Butadiene Rubber) construction for superior heat and refrigerant resistance
• Compatible with R-12 and R-134a refrigerant systems
• Part of the Master Technician Series professional-grade tool system
• Designed for compressor replacements, line repairs, and general A/C system maintenance

This O-ring assortment covers the most frequently encountered sizes for automotive air conditioning work, including hose connections, compressor manifold ports, and various system fittings. The kit can be used standalone or as part of the complete MT9250 Rapid-Pro IV system alongside companion boxes MT9636 (Line O-Rings, Caps & Valve Cores) and MT9637 (Sealing Washers & Metal Parts).