Currently (until 12 January 2015), there is a sale on Australian Geographic. The Plossl 40 mm was reduced from $39 to $25. Postage is free.
http://shop.australiangeographic.com...iece-40mm.html
They give no further specifications. I am just guessing that it fits the barrel diameter 1.25", and its AFOV is 43 degrees.
I tried to find what it was rebranded from, but could find nothing. All the Plossls at 40 mm (Celestron, Meade etc) are a rebrand of GSO Plossl. However, the shape of the barrel in this one is different.
Can anyone suggest if this Plossl is a good buy ? I have a refractor 90 mm diameter, 910 mm focal length. My intention is to use the eyepiece for the initial scoping of the sky.