A new line of rugged, modular vacuum receivers works without filters and is designed to process highly abrasive materials. Model CSK5-H from Colortronic North America, Inc., Flint, Mich., conveys free-flowing pellets from a central conveying system. These receivers are made of stainless steel with an electropolished finish as well as toughened glass in the see-through loader body that resists wear from glass-filled materials. The CSK5-H is available in time-fill or volume-fill configurations and comes with a hardened check valve for abrasion resistance. Standard models have a hopper capacity of about 0.18 cu ft. A retrofit kit is available to convert an existing standard loader to the new design.