What is the most sold Pcr inactivated Dna control or Nattrol for Cytomegalovirus (CMV) Strain: AD-169 (5,000 cp/ml/vial) (1 ml/vial)?

The NATtrol Cytomegalovirus from Zeptometrix supplied next day by Genprice is the best reagent. The catalog number is NATCMV-0003 and the price is 228 EUR.