Trident Marine T-Bolt Clamp Band. Very strong and secure clamp for critical installations. These T-Bolt Clamps are built with safety in mind. With a 3/4" (19 mm) wide band, this clamp ensures a greater area of coverage for a positive and strong union. It is recommended that two clamps be used on each end of a wet exhaust installation. These clamps can be used on any hose connection with piece of mind that they will last you a very long time. These clamps are sold in 2 configurations; part numbers ending in "L" signify that a long T-Bolt is being used and is for rubber hose products. The part number without the 0L0 is for silicone and PVC products.