Reads 0-4.5" WC, non-toxic fluid The liquid is a non toxic oil, so no evaporation to worry about Mineral oil with a blue dye added Adjustable zero Molded scale curved to fit system pipe
| Brand | xyfair |
| Manufacturer | SZ Xinyifeng |
| Country of Origin | USA |
| Item Weight | 18 g |
| Product Dimensions | 23 x 18 x 0.5 cm; 18 g |
| Item part number | U0011 |
| Item Height | 0.5 Centimeters |
| Item Width | 18 Centimeters |
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