I just saw this one on drillspot. They claim it is sealless. Noryl is a stable material at boiling temps, but all they give for specs is gravity up to 1.5 I can not find any other info about them.
I use the same pumps made by Teel, the pumps have been running since 1995.
The Noryl version is rated for only 140° F max fluid temp, the stainless 230° F.
My Noryl version as tested by me has problems above 185° F and 7' lift.
A great pump for low temp applications.
Wetting the pump has never been a problem, completely sealed (not wash down rated).
These pumps are for liquid only, if you need a mash pump Teel makes a nice one.
I got the bronze version only.
My SS version used for hot wort pumping
Noryl version used for water only