If you frequently switch between double tank and single tank rigs, the OMS Single tank adapter is for you. It can mount on any of our harness’s like the DIR and Comfort II harness as well as our IQ backpack. It can even be mounted on many of the metal backplates on the market today. Constructed out of stainless steel to prevent any corrosion with all necessary hardware to mount onto a backplate. It comes with ourwhich are equipped with two non slip pads and plastic buckles to prevent corrosion and without .