What is the easiest Pcr inactivated Dna control or Nattrol for Influenza/RSV Negative Control (6 x 0.5ml/vial)?

The NATtrol Influenza Negative Control from PubMed Publications delivered next day by Gentaur to your Lab is the best reagent. The catalog number is NATCXVA9-6MC and the price is 175 EUR.