Lol, yeah ldpe I guess that's why I couldn't find anything when I used the search. Lol.
I keep it at 155 when doing all grain so I guess it should be ok then. Saw those 170 litre ones on sale the other day but didn't get one, now I'll go back and see if they're still on sale.
Thanks for the responses guys.
Numerous 57L kegs, some propane, one 220v electric with stilldragon controller. Keggle for all-Grain, two pot still tops for whisky, a 3" reflux with deflag for vodka. Coming up, a 4" perf plate column. Life is short, make whisky and drag race!