Here's an Elkhartt barrel strainer attached to a Red Head fitting. The barrel strainer with the base and hanging loop is approximately 15" in length and the strainer is 6" wide (loop end). The attached Red Head fitting is a 6NHx4 1/2NH. This is a used piece of equipment that has wear, patina, peeled chrome and scratches, but looks to be in great "physical" shape.
From the fire department - I was told that this works as it should - but that they were replacing some used equipment with new. Please look closely at the pictures for condition (I do not have the ability to independently test these).