TUBING COPPER REFRIG 3/16 X 50|Cambridge-Lee Industries manufactures a full range of copper tube in soft coils and hard drawn straight lengths. Their refrigeration coils and ACR tube are dehydrated, cleaned and capped (degreased) to ensure tube reaches customer in a pure, defect-free state. Their Type L Cleaned and Capped Oxygen/Medical Gas straight length tubing is manufactured to the chemical, mechanical, cleanness and eddy current test requirements specified in ASTM B819.