Gas manifold is used to connect two or more cylinders of same type with common cylinder regulator. The advantage of using manifold is to change from empty cylinder to filled cylinder without disconnecting the gas. MOC is brass chrome plated with ISI mark valve. It also consists of high pressure flexible pigtail of 1 meter long with ¼" teflon tubing with SS brading with mounting bracket. The manifold are also available for two or more cylinders.