Which coolant recharge unit is portable and capable of filling one bottle at a time?

• A. GCU-32
• B. GCU-60
• C. GCU-30/E
• D. GCU-10

Answer: (C)

Understanding this comes down to how these coolant recharge units are sized for field use. A unit that is portable and capable of filling one bottle at a time is designed for single-bottle operations in the field or on a small bench, allowing precise control over each fill and easy transport. The GCU-30/E fits this role because it is the compact, field-friendly model that can deliver coolant to a single bottle in a controlled fill, making it ideal for recharging one container per cycle. The other models are built for higher throughput and bulk filling, so they are larger, less portable, and not optimized for filling just one bottle at a time. That’s why the GCU-30/E is the best match for a portable, single-bottle filling requirement.