2 air compressor oil tank discharge valves. The NPT external threaded brass twist plug drain valve is a direct replacement for standard air compressor drain plugs and wing shaped drain valves, made of high-quality solid brass with durability and sturdiness. The drainage valve is designed to be able to twist and roll with one hand, effectively removing air, water, moisture, and oil from the air compressor oil tank. Simply twist gently to release or close. The replacement parts for the gas storage tank valve are compatible with most air compressors with NPT internal threaded ports, ensuring long-term performance to meet daily maintenance needs. Compatible with: 1WC94 Type 0, 1WC94 Type 1, 1WC95 Type 0, 1WC95 Type 1, 1WC95 Type 2, 3JR70 Type 1, 3JR71 Type 0, 3JR71 Type 1, 4UP72 Type 1, 4YD76 Type 0, 4YD76 Type 2, 4YD76 Type 3, 4YD76 Type 4, 5Z598C Type 1, 919-15204 Type 2, 919-15212 Type 0, 919-15212 Type 1, 919-15214 Type 0, 919-15214 Type 1, 919-15214 Type 2, 919-15214 Type 4, 919-15214 Type 5, 919-15216 Type 0, 919-15216 Type 2, 919-15216 Type 3, 919-15316 Type 0, 919-15445 TYpe 0, 919-15725 Type 1, 919-15726 Type 0, 919-16345 Type