4002V Water Vest only 4000-V Water Vest with Water Hand Pump 4000F-V Water Vest with Foam Hand Pump 4" Filler Port and ¾" GHT Outlet. 6 Gallon (22 L) capacity. Three quick release buckles. Bright Yellow color for high visibility. Available as Vest only (4002V) or paired with a Water Hand Pump (4000-V) or a Foam Hand Pump (4000F-V).