Item #SuperstrutB-LineUnistrutGMF100-1AB239-1B261-8–GMF100-2AB239-2B261-16–GMF100-3AB239-3B261-24–GMF100-4–B261-36–GMF110-1AN270-1B381P1204GMF110-2AN270-2B382P1205GMF110-3AN270-3B383P1206GMF110-4AN270-4B384P1207GMF110-5AN270-5B385P1208GMF120-1–B411-12P1201GMF120-2–B411-15P1202GMF120-3–B411-18P1203GMF130–B439–GMF131–B438–