Cambridge-Lee Industries manufactures a full range of copper tube in soft coils and hard drawn straight lengths. Our refrigeration coils and ACR tube are dehydrated, cleaned and capped (degreased) to ensure tube reaches customer in a pure, defect-free state. In addition, our ACR tube is nitrogen charged. ACR tube is also suitable for medical gas systems according to ASTM B-280, B-819. type K cleaned and capped (degreased) is often specified for medical gas systems as well and is available from Cambridge-Lee Industries.