Package exchanges are provided in standard and non-standard models for specific product handling in banking, fast food, convenient stores, post offices, cash vaults, and other similar applications. We stock four different standard models in widths ranging from 12” to 22 “and heights from 14” to 16.” Transparent materials in UL-752 levels 1-3 and opaque materials in UL-level-8 are used to make these exchanges. Custom package exchange units can be provided with aluminum frames and double interlocking doors wherein the custom interlocking device allows only one door to be open at a time. Optional stainless steel cladding can be provided as well.