Reed Tool MW1 1/4 One Hand Wrench, 3/8 to 1-1/4-Inch

The original and still the best for working in tight places
Spring-loaded jaws quickly grip many shapes
Saves time loosening nut due to ratchet action jaws
Unlike a pipe wrench which cannot ratchet on a fitting
Pipe capacity: Nominal 3/4 to 1-1/2"