Yes, they are good quality and should be fine with hot water in the standard hot water range.
They fit 5/8 & 3/4" garden hoses.
Not likely. There are no P65 warnings on the packaging no in the website descriptions
I simply press the ring off of the stick/hanger, but it does take some force. Then, I can replace it and reuse it.
Gus, that might be a question for Ray Padula. All we can say is that these washers and O rings are built for use with 5/8" - 3/4" standard hose connections.
Sorry, I do not know the technical part of this product. Just a user. By the way, I don’t use it because it has no steam for my flowers.
Just place an order to have it shipped to the store.
yes, but that was not my concern.