Thomas & Betts LTEUS01B-L LFMC EMCSTDUL 3/8IN BLK 300M/1000FT

It's 3/8 inch trade size liquid tight flexible metallic conduit supplied on a 1,000 ft (300 m) reel. That's a bulk reel quantity, so it's aimed at a full job or shop stock rather than a single short whip.

The core is galvanized steel with a tin copper braid over it, jacketed in black. The tinned copper braid is what makes this an EMC/shielded type rather than a plain liquid tight flex, so it's used where shielding and a continuous low impedance path along the run matter, typically on VFD and motor feeder runs.

Yes. Use 3/8 inch liquid tight connectors matched to the conduit, and for the braided EMC type you want connectors that terminate the shield, meaning the braid gets clamped and bonded at both ends. A standard liquid tight connector will seal the jacket but leave the tin copper braid doing nothing electrically, which defeats the reason for buying the braided version. Fittings are ordered separately from the reel.

Standard liquid tight flexible metallic conduit handles wet locations and vibration fine and costs less to install. Go to the braided EMC version, like the LTEUS01B-L with its tin copper braid over a galvanized steel core, when you need EMI shielding on the run, which is typical on variable frequency drive leads to motors where drive noise has to be contained.

Liquid tight flexible metallic conduit is built for exactly that: the jacket keeps water, oil and coolant off the conductors while the flexible steel core takes the vibration and movement. That's the case here with the black jacketed 3/8 inch product. Seal both terminations with proper liquid tight connectors or the jacket's rating stops at the fitting.