Thomas & Betts LTZES12B-A LFMC HLFR 5IN BLK 8M/25FT

Galvanized steel core with a black jacket over it. That's what makes it metallic liquidtight (LFMC) rather than the non-metallic LFNC type. The steel core gives you the crush resistance and physical protection a plastic-core flex doesn't, which is why it's the usual choice for motor connections, HVAC equipment whips, and exposed runs where the raceway can take a hit.

No. The LTZES12B-A is conduit only, sold as a 25 foot coil. You order liquidtight connectors separately, and they have to match the trade size of the conduit and the box or equipment knockout on each end. Plan on two fittings per whip at minimum, plus sealing rings if you need a raintight or wet-location termination.

Each coil of the LTZES12B-A runs 25 feet, which is 8 meters. If you're piping multiple motor or rooftop unit whips off one order, count your drops against that 25 foot length before you commit, since it ships as a fixed-length coil rather than cut to order.

Metallic is the one contractors reach for on equipment whips. The LTZES12B-A is LFMC with a galvanized steel core, so it takes abuse in the mechanical yard and holds up where a lawnmower, cart, or foot traffic can reach it. Non-metallic liquidtight is lighter and easier to bend in tight interior spaces but gives up that mechanical protection. If the run is exposed at grade or on a roof curb next to equipment, go metallic.

The manufacturer part number is LTZES12B-A from Thomas & Betts, a black LFMC with a galvanized steel core supplied in 25 foot (8 m) coils. If the existing runs on your site were pulled from that same number, this matches on jacket, core construction, and coil length. Compare the printed legend on the jacket of what's already installed against LTZES12B-A before you order a pallet for a multi-building standardization.

Black. On most commercial and industrial work black is the default and it's what inspectors and other trades expect to see on motor and equipment connections. Some facilities color-code raceway by system, so if your spec calls for a specific jacket color for fire alarm, controls, or emergency circuits, black won't satisfy that and you'll want the color your standard names.