With a wider 4” mouth, there is easier access for cleaning. It is made of heavy P.E.T. plastic that is BPA free and crystal clear. Marked at 5, 6, and 7 gallons, the interior is smooth so that sediment drops to the bottom and does not adhere to the sides.
Comes with an O-ring and air-tight ONE PIECE lid with a hole that will take a #10 stopper or medium carboy bung (not included)
Completely taste and odor-free. It is also stain resistant.
Impermeable to oxygen.
Also they are big enough so you can use them as your primary fermenter.