Originally Posted by sabray
Maybe a whale gusher MKII?
Didn't see a mark II on their website. All the pumps I did see come apart on the diaphragm
. The pump I have has the diaphragm secured to the pump body on one side of the body and the quick release cover on the other side of the body. The Whale pump body is all one piece on the side opposite the diaphragm.
The pump I have is an old black aluminum