Ribbed Steel
Models 3250-51-52/3240-41-42/3220-21-22

3250 25 Gauge, Uninsulated
3251 25 Gauge, Insulated w/ Vinyl Back
3252 25 Gauge, Insulated w/ Steel Back
3240 24 Gauge, Uninsulated
3241 24 Gauge, Insulated w/ Vinyl Back
3242 24 Gauge, Insulated w/ Steel Back
3220 20 Gauge, Uninsulated
3221 20 Gauge, Insulated w/ Vinyl Back
3222 20 Gauge, Insulated w/ Steel Back