The moisture meter can quickly measure the moisture content of the grain. 1. The adjustable air conditioning valve core puller, which is suitable for different valve cores, meets different needs. 2. Cold air gas connector can be adjusted. With connector on high and low side. 3. Ideal for replacing valve cores, without having to empty or regenerate the system. 4. The built-in ball valve holds the load and allows access to the automatic air conditioning system. 5. brass material, anti-corrosion, anti-corrosion and durable, which ma long service life. Specification: Item Type: AC Valve Core Removal Tool Material: Brass High Side Connector: Red Low Side Connector: Blue Quick Coupling: Air Conditioning Suitable for: other valve core Valve core: R134/R12 List of packages: 2 x AC Valve Core Removal Tools Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.