Stainless spring steel is the only way to go. I wanted one in stainless so I had to buy a minimum order. I had a original spring that I used as a guide.

There are two major differences between "theirs" and "mine":

• Nobody has the wire turned in on the ends. In my opinion the wire could rub thru the hose with enough heat cycles.

• Mine is stainless steel. I did the magnet test right after I had them made to confirm they are stainless.

If anyone is interested in one, pm me here.

The original one is on the top, the new one-bottom.