Fixed-In-Place (FIP) Version The Flexi-Dip Fixed-In-Place (FIP) sampling system, valve and "closed" sampling tape are shown      above, left. Above, right is the unique MMC Model MBS fixed-in-place vapor-control valve with its built-in sampling port. The S series of valves (including BS, MBS and MMBS) are simple to install, easy to keep clean and convenient to use. The valves and Flex-Dip FIP system will support the collection of 1/2- and 1/3-liter samples. (2" Model MBS and BS valves for 1/2-liter sampler and 1 1/2" Model MMBS valve for 1/3-liter sampler). The FIP system, valve and sampling tape is a gas-tight system. When its closed tape is attached to any S series valve, it can extract and bottle a sample in place without exposing the sample to the atmosphere. The sample bottle twists off easily for capping, labeling and transportation to the lab. Designed to meet or exceed all existing vapor-control regulations, the system is totally gas-tight. It employs a unique vapor return hose assemly which directs the sample bottle's vapors back to the tape housing to maintain the system's gas-tight intregity. The Flexi-Dip FIP sampling system also includes a sturdy, molded plastic carrying case for convenient transportation and safe storage with a spare battery and instruction manual. Laboratory grade, non-breakable sampling bottles are also available along with convenient sample bottle carrying racks for 4, 6, 8 or 12 bottles.