This compact helium bottle is designed to be used with portable helium leak detectors units. A helium regulator P105089 or similar is also required in conjunction with our Helium Spray Probe Gun Kits (P104871, P105182, or P1011211). The bottle is refillable and is shipped ready for use with helium gas inside. The bottle can be shipped back to exchange for a fully charged bottle. Please call for bottle exchange pricing (505) 872-0037. This sale is for the helium bottle only. The helium regulator and helium spray gun are sold separately.