The MTI RK4 Re-arming Kit easily rearms your inflatable PFD. It's a simple Leland 16 gram CO2 with a bayonet. Insert jacket and twist to lock to rearm, check the indicator window, when it shows green, you're ready to go and your jacket is now rearmed. Spent cylinders can be recycled.

Fits: Fluid 2.0, Helios 2.0, SUP Safety Belt