No it does not.

Don’t think so but there is a reasonable gap between the bottom of the spigot hole and the base of the vessel. It kept most of the sediment from passing into my secondary.

Not sure what you mean by “sediment blocker.” The spigot is positioned some distance from the base though so there’s room for a lot of sediment below the spigot. I use mine for kombucha so don’t have to worry about sediment.

This is a piece of junk - don’t buy - lvery thin and flimsy eaked all over the place.

No it does not have any kind of filtration or blocker

no

No they do not

No

To the rim it holds about 1.2 gal but to leave room for krausen I wouldn't fill it beyond 1.06 gal (1 gal + 1 cup).

I would think not much more than 1 gallon because you want to leave enough room for the krausen. These have the extra room built in for the necessary head space but it will all depend on what kind of beer you are brewing.

I would say it is about 1.1 gallons

This fermenter is designed to hold 1 gallon with a little headspace for krausen. In total it will hold about 1.2 gallons if you fill it all the way to the top.

I have two and I’m glad I do.Yes they have space for the Krausen

There is ullage above one gallon for krausen. These were fairly successful and economical for doing side-by-side fermentation trials. However 1) the side walls are thin and flimsy like a PET soda bottle 2) I did have some trouble getting the spigots to seal so test those before filling them with fermentables and 3) I saw no action on the fermentation lock: not sure if the stopper made a poor seal with the cap or if the screw-top lid seals poorly. Not a big deal but an inconvenience.

The 1gal mark is right where it starts to narrow so there is about 2-3 inches of headspace.

It does but it would be a little cramped for head room with a higher Krausen yield brew if you filled it to a full gallon.