Bulk Pack for Convenience: Each pack includes 50 ac valve cores, offering excellent value for maintenance professionals or DIY users. Stock up for multiple projects without the need for frequent reordering, saving both time and effort. Durable PTFE Seals: Features reliable PTFE seals for enhanced durability and leak resistance. These hvac schrader valve cores help maintain system integrity and are built to withstand long-term use in HVAC and refrigeration systems. High-Pressure Performance: Engineered for high-pressure environments, these schrader valves cores meet AHRI-720 standards for performance and reliability, ensuring efficient operation in demanding refrigeration systems. Wide Compatibility: Designed to fit most standard HVAC and refrigeration setups, these valve cores are suitable for a variety of commercial and residential systems, making them a versatile replacement solution. Reliable Maintenance Component: Perfect for service technicians and system owners, these valve cores are essential for regular maintenance of air conditioning and refrigeration units—helping extend system life and improve performance., Manufacturer: 20 MULE TEAM