AZL offers enough unique reporting numbers on their PFE reefers to make up a beautiful string of them as pictured above. AZL Z Scale Trains Pacific Fruit Express 40' Reefers. These PFE reefers are available in singles, 4 packs and even a 12 car set. You will find them with the UP SP heralds on the same side and also on alternate sides. The cars feature, intricate, detailed printing, auto-latch couplers, blackened wheels and roller bearing trucks.