light weight,and durable,easy maintanace,safe to use,etc... cylinders for FOAM extinguishers,type3L4L6Lout diameter(mm)130130180cylinder length(mm)350450410cylinder weight(kg)1.51.82.3volume(L)346minimum wall thickness(mm)1.01.21.2marterialS/304 testing pressure(bar)252525packing size (4pcs)36*27*2746*27*2742*37*37 foam,dry powder