Use with Auto/Manual Pull PFD devices with V85000 Series Inflator. Re-Arm Kit F 38G Auto 3/8" Threads. Re-arming kits are essential as they add another season of use to your inflatable life jacket. This Leland kit contains one 38-gram CO2 cylinder with 3/8" threads, one green pin, a bobbin, and step-by-step re-arming instructions.