if you buy the element guard kit from still dragon, you can fit a 5500W ULWD ripple into it. it's a tight fit, but not too bad. they're also cheaper than the brewers hardware element adapter
I have both, and they're both nice, just different setups
Yup, I have the still dragon and it works great! I use the 5500w ULWD ripple and it works, you just have to finagle the element into it a bit.
Here's my 1.5" setup from Brewer's Hardware. One mistake I made - had the ferrule welded on too low (done before the enclosure arrived because I was like a kid on Christmas Eve and couldn't wait!). Was trying to get the element as low in the kettle as possible since I BIAB 5 gal batches in an 11 gal kettle and wanted as much clearance as possible for my false bottom.
Anyway - the cap on the 1.5" is considerably larger than the diameter of the enclosure itself. Just be aware of that and place the ferrule appropriately. My fault for jumping the gun, but I've accounted for it in the design for my new stand.