Firestone 6873 double convoluted air spring, 8" diameter with 1/4" npt port. Length is 3" minimum, 5"-5.5" ride height and 8" maximum. Load capacity is 2140 lbs. at 100 psi.
Firestone 6781 double convoluted air spring, 6.5" diameter with 1/4" npt port. Length is 3" minimum, 4.5"-5" ride height and 7" maximum. Load capacity is 2140 lbs. at 100 psi.
Firestone 7325 double convoluted air spring, 8" diameter with 1/4" npt port. Length is 3" minimum, 5"-6" ride height and 10" maximum. Load capacity is 3400 lbs. at 100 psi.
Firestone 7076 rolling sleeve air spring, 4" diameter with 1/8" npt port. Length is 3.5" minimum, 5"-6" ride height and 9" maximum. Load capacity is 800 lbs. at 100 psi.