I have a quantity of 80 brand new never used 1/4"NPT Type 316 stainless steel bulkhead through the wall pipe fittings. I had purchased these for a project and have 80 left over. I believe that they are type 316 stainless steel but they could be type 304. I am selling at a reasonable price compared-(see McMaster-Carr catalog sheet). Price for each includes shipping within continental US (I also have (4)-1/2"NPT which are shown in image which I will be listing separately)