I ordered at 50’x12.5″ coil of 1/2″ stainless steel for my HERMS coil. I also ordered the camlocks and some other random stainless fittings.

Stainlessbrewing.com
1x 50’x1/2″ OD 12.5″ diameter SS coil with two 90 degree bends
10x 1/2″ High Flow Type C Camlock
1x Type A Camlock
11x Type F Camlock
2x 1/2″ SS Hex Nipple
3x 1/2″ SS Tee