34” long tube/straw? Wire run through each? Nipple on each? Fluid extraction? Which fluid? Why 2 of them?

I am thinking installing two of these to replace the old voltmeters. Wondering if anyone has done the same already? Not cheap, but I don't mind because I want the accuracy and multifunctionality. Blue Sea 1838 M2 Ac Multimeter - Marine Electrical Part (hodgesmarine.com)

Got started on replacing my overhead in the main saloon. Thanks Sky for encouraging me to do it. Interesting where the light fixture was they just cut out the inner layer of glass and removed the coring.

The plexiglass cover over the light fixture in the masterhead is cracked 43 DCMY) Has anyone replaced these? If so, where can I find one? Is a straight piece of plexiglass flexible enough to be made to bend into shape or does the curved shape have to be manufactured this way?

Can anyone tell me what the bronze corroded thru hull fitting (for lack of better words for what to call it) with the T-handle is and it's purpose?

I have a 1988 - 67' CPMY and I am trying to find the water shutoff(s) for the following connections: 1) aft deck bar sink 2) cockpit hot and cold faucets. 3) Port bow washdown connection I do not see any information about shutoff connections in the manual. Any information would be greatly...

“Drive Temp” keeps going off? Can anyone direct me to the sensor? I don’t have a “Drive Temp” Gauge? Thx

Getting ready to fabricate battery boxes to accommodate 2 new banks of Full River 8v AGMs. I thought by rotating the batteries and orienting the terminals in the scheme shown (left illustration) the result would be some really short jumpers which would be beneficial in my mind. However ...