Military Aquatic Filter? Mine Looking Buoy Level Window Metal 10" What is It?

Description

This Auction is for the following item
you will receive exactly what is described and what is pictured  any objects in the pictures not described are not included
This Auction is for a ? no clue what it is, it is metal, seems military and aquatic, Im thinking some type of filter system top valve is stamped vent,  bottom valves: Boost Pump, hoist pump, RET, RET and the very bottom not marked, also has a gauge window  with Low and full Readings, stamped Bewley Engineering  CO Assem no A-3001-2  also 1042 measures 10" across, very unusual piece weighs about 5 pounds
any type of cancellation after payment is made will be charged a 30% restocking fee
the actual weight of this item, shipped to your zip code,  generated by the shipping company I am using, shipping can not be too high as the bidder should take the shipping into consideration when bidding, if your willing to pay 50.00 for something and shipping is 15.00 then you only bid up to 35.00 if shipping is 5.00 then you can bid up to 45.00, if shipping is 50.00 you just don't do it, pretty simple.  not everyone needs this tutorial but believe it or not a lot of people do, so I include this wisdom free of charge
any questions feel free to ask
If you have any issues after you receive your item, PLEASE contact me first, I stand behind every Item I sell
Payment Must Be Received After Auction Ends
Payment must be made within 3 days of auctions end, if you need an extension due to vacation or traveling, or emergencies  just message me and it will be no issue. if payment isn't made and I have no contact from the buyer within 3 days of auctions end , the buyer will be in breech of agreement and voluntarily forfeits any and all auction rights, by Bidding you agree to these terms.