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1. Portable Salinity Refractometer Meter Tester 0-100% Aquarium Sea Salt Water UK

   Designed for professionals in agriculture, industry, and research for mariculture, aquarium enthusiasts, and food processing applications.

   eBay

2. Portable Salinity Refractometer 0-10% Aquarium Sea Water Salt Meter Tester Tool

   Salinity Proportion: 1.000-1.070sg.

   eBay

3. Handheld Refractometer for Marine Aquarium Fish Tank Salinity Testing Salt Meter

   Salinity Proportion: 1.000-1.070sg.

   eBay

4. 0-10% Salinity Refractometer Salt Water Tester Hydrometer For Fish Tank Aquarium

   Salinity Proportion: 1.000-1.070sg.

   eBay

5. Salinity Refractometer Salt Water Hydrometer Sea 0~10% Tester Aquarium Test UK

   Salinity Proportion: 1.000-1.070sg. 1 x Pipette. Widely used in mariculture, aquarium, saline solution preparation, etc. Size: 19 4cm. 1 x Protective carrying case. No used item will be accepted. If you do not do so it may result in suspension of your account or fine.

   eBay

6. D-D Refractometer Marine Aquarium

   In good condition and full working order.

   eBay

7. MARINE AQUARIUM SALINITY REFRACTOMETER ATC. HYDROMETER, For Marine Reef Tank Aqu

   With high-quality optics and a soft focus, it is made of aluminum alloy. The internal optical lens with a high refractive index forms a precision optical system. It is convenient for both kids and adults, ideal for aquarium, marine monitoring, farming, gardening and educational purposes.

   eBay

8. Handheld Refractometer for Marine Aquarium Fish Tank Salinity Testing Salt Meter

   Salinity Proportion: 1.000-1.070sg.

   eBay

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