SMC Dualguard Auto-locking Lite Steel Carabiner NFPA 2021 The MPD allows you to

The MPD allows you to go from lowering to raising without changing hardware

Tailing grip can be adjusted to accept most diameters of rescue kernmantle ropes

The AUTO-LOCK system allows users to easily position themselves at a work station without having to manipulate the handle or tie off the device: as soon as the user releases the handle

and Canada

SMC Dualguard Auto-locking Lite Steel Carabiner NFPA 2021 The MPD allows you toA Lite Alloy steel carabiner featuring double or triple action gates. Easily opened with one hand, but once released, the gate closes to a fully locked position. The carabiner gate and sleeve are stainless steel for problem free operation. An offset "D" shape provides a smooth transfer of the Munter hitch when used as a belay and has ample volume to clip in large diameter ropes and over the rails of most litters.