This level is a 5 star purchase for my purposes. I won't go into its accuracy as it's just as convenient and useful to take the camper to an absolute level if it's within a few degrees. If my propane appliances aren't working and I can't cook a few degrees, I'll have to reconsider my vacation. In addition, the quality of this level is significantly higher than that of the plastics that I have come across again and again in well-known motorhome shops. Non-ferrous metal, case. plastic windows. The bubble size is the same as the dead center ring. The photos show a size comparison in my hand and I assume it is a factory sealed liquid fill port. Width 2 3/8 inches. Thickness 3/8 inch. (Near enough)
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