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US $ 3.9-4.5/Set
500 Sets
US $ 2.45-3/sets
200 sets
US $ 18-21/BOX
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US $ 4.17-6.21/preps
48 preps
US $ 2.95-3.65/Piece
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Find wholesale water quality testing kit online from China water quality testing kit wholesalers and dropshippers. We help you get high quality water from air and water treatment equipment at bulk prices from m.made-in-china.com.