Pets can only go as far as level 75. The gloves alone raise the jug pets level to 0-1 level below that of the Beastmaster (according to Wiki.) I am still running 'tests' to see if it is true and when I merit Beast Affinity to the max I will run more and post my findings here.
Wonder how this would affect pet lvl if you allready have Beast affinity maxed out (atleast i think its beast affinity that raises pet lvl). You can merit pets to 75... so doing that and wearing this might increase pet lvl to 76? Would be pretty cool :>