Inquiry (采购产品): Stainless steel tubing I am in the process of designin & fabricating a device for converting water into hydrogen & oxygen. The plans call for 3 1/2" dia to 4" tubing. The housing is made from 4" CPVC pipe 12" long threaded on both ends with caps both ends. Problem is, the pipe will cost over $15. I was thinking of making the housing from stainless steel tubing instead. I've been told that stainless will cost abuot the same. If I can get the required material for this project it should be for the least amount of money as it will be sold in kit form. They could be sold in large quantities.I am waiting for your reply. Robert M. Walker **** Hidden Message ***** Bob Walker 97702-2860 Company: Private party E-mail: bobnruth@dslextreme.com **** Hidden Message ***** bobnruth@dslextreme.com