Both the Catchmaster Easy Set Rat Snap Trap (621P) and the Trapper T-Rex would really be comparable in terms of bite pressure and snapping strength. The bait cup is the biggest difference in these two traps: the T-Rex bait cup is removable from the bottom of the trap, while the Catchmaster trap has a hole on top of the trap to expose the bait cup from above.
Catchmaster Easy Set Rat Snap Trap (621P) will hold small bait such as dog food, fruit, nuts, grains, cotton, straw, etc. Please review our How to Treat for Rodents Guide for more information on a full treatment.
Catchmaster Easy Set Rat Snap Trap (621P) will fit into the Bell Labs Protecta Rat Bait Station.
Yes, the Catchmaster Easy Set Rat Snap Trap (621P) will work on large rats. Once the Easy Set Rat Snap Trap is set, it measures 3 inches in height.