I have 2 MP40wes's FS, 1 has a new QD wetside, the other has the original wetside but as I was going through my "parts box" we all have I found a new wetside maintenance kit so it has been rebuilt. Both have been cleaned and are ready to go. Both have new power supplies (not ecotech), Both are quiet but not as quiet as a QD. $310 for the pair shipped or I will split them up at $160 shipped for one with the QD wetside, and $150 shipped for the one with the non QD wetside.