Ebox strut ratings

[tomc585]

What force rating struts are you guys using on your ebox's? No markings left on the old ones.
Box has twin 7.5 struts supporting tinted acrylic door
10, 20 and 30lbs are the options for the 7.5".

 

[Antidote]

A pair of 10# gas springs is plenty. The door doesn't even weight 10#s.