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Duotone panel — violet briefing on the left, lime-sealed detail sheet on the right.
The Water Purity Tester is an essential device for anyone concerned about the quality of their drinking water
"name":"laboratory Hand Refract Meter Erma Japan 0-100%
Don't compromise on quality - choose the 12V voltmeter for reliable voltage assessment
"mpn":"136717172763"
providing you with long-lasting use without compromising on quality
Ring And Ball Apparatus slide out truck bed box The Water Purity Tester isRing And Ball Apparatus A useful apparatus for demonstrating thermal expansion. Includes a brass ball and a brass ring each mounted on a handle. The ball fits easily through the ring at room temperature. When the ball is heated over a flame, it expands and no longer fits in the ring.