R12 to R134A Conversion Kit: includes 1 x 90 degree low side R12 to R134A conversion adapter, 1 x 90 degree high side retrofit adapter, 1 x low pressure side AC fitting port retrofit adapter, 1 x high pressure side AC fitting port retrofit adapter, all with dust caps; also includes 2 x valve core removal tools for easy and fast installation. Quality and Sturdy Material: the 90 degree R12 to R134A AC fitting adapter kit is made of high quality brass, while the straight type adapters are made of aluminum alloy. Features good sealing and heat resistance properties, durable and resistant to rust. Leak proof design ensures reliable performance. Good Compatibility: compatible with 1/4 inch female to 7/16 inch-20 UNF connection. Works with R134A quick disconnect hose. Suitable Size: low side (blue cap) measures 1/4 inch (7/16 inch-20) x 13 mm; high side (red cap) measures 1/4 inch (7/16 inch-20) x 16 mm. Designed for easy installation. Practical Use: includes 2 x 90 degree AC fitting port adapters and 2 x straight type AC fitting port adapters, suitable for a wide range of applications for AC refrigerant systems. Valve core removal tools included for convenient valve core removal. Color: As shown in photo Material: Metal Package Contents: 1 x AC Fitting Conversion Adapter Kit Note: Light reflection and different display settings may cause slight color variation between the image and the actual item. Measurement may vary by +/- 1-3 cm.