Explosion-Proof Drain

Thread size (In.) 1/2

Material – Stainless Steel

Item has C-H USA
Type ECD
UL Listed CSA
CL I GR CD
CL II GR EFG
CL III

See it here for $60.18 each (opens in new window)

This item is not in the original packaging.
1/2 Inch thread size and Information below Item has C-H USA is reliable.
Balance of information is from on-line research and may not be reliable.

I found this link, I thought WOW, they must charge extra for the engraving.