OSP Heavy Duty MicroCore® LMHD-Series Micro Fiber Cable, Single-Mode, 144 ct., Toneable, 250µm BIF fiber, Single Jacket Dry/Gel. Price Per Ft. Our reels have a manufacturing variance of up to 5%, you will be billed for the quantity that ships. This cable is comprised of outside plant (OSP) loose tube fiber optic cables that are optimized for air-jetting into single or bundled micro-duct pathways. The product is constructed using gel-filled buffer tubes that are SZ-stranded around a central strength with an overall outer HDPE jacket. , , LM1449O6201T1