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Salinity

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Home / / Salinity refurbished & used for sale | For Sale USA
Seachem prime - seachem,

Seachem prime - seachem,

$8.89
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Aquarium hydrometer salinity - aquarium,

Aquarium hydrometer salinity - aquarium,

$12.99
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100 salinity - 0-100‰,

100 salinity - 0-100‰,

$17.99
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Freshwater salt system - salt,

Freshwater salt system - salt,

$148.75
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PH/TDS/EC/Salinity/Temperature

PH/TDS/EC/Salinity/Temperature

$18.29
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Hanna hi98319 waterproof - hanna,

Hanna hi98319 waterproof - hanna,

$99.99
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Seachem stability - seachem,

Seachem stability - seachem,

$13.99
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Aquarium glass hydrometer - 2x,

Aquarium glass hydrometer - 2x,

$13.95
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Api marine saltwater - api,

Api marine saltwater - api,

$25.18
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Api tap water - api, conditioner

Api tap water - api, conditioner

$23.19
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Seachem safe - seachem,

Seachem safe - seachem,

$127.45
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Tetra easystrips 1 - tetra, 6-in-1

Tetra easystrips 1 - tetra, 6-in-1

$12.99
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Instant ocean reef crystals - ocean,

Instant ocean reef crystals - ocean,

$61.99
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Xtremepowerus salt cell - cell, plate

Xtremepowerus salt cell - cell, plate

$379.95
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2026 upgraded aqua rite - 2026,

2026 upgraded aqua rite - 2026,

$219.97
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Seachem cichlid lake - lake, salt

Seachem cichlid lake - lake, salt

$74.71
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Salinity refractometer for - salinity,

Salinity refractometer for - salinity,

$26.83
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Aquarium marine test - test,, sea

Aquarium marine test - test,, sea

$19.23
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Salinity refractometer - salinity,

Salinity refractometer - salinity,

$15.99
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Digital water quality - in,

Digital water quality - in,

$17.70
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Smart water tester - smart, 6-in-1

Smart water tester - smart, 6-in-1

$65.00
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Api test kit - kh,

Api test kit - kh,

$12.49
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Pool salt tester ph - 5, in

Pool salt tester ph - 5, in

$26.09
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Lot of hanna instruments - **,

Lot of hanna instruments - **,

$299.99
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Salt 3000 salinity - salt-3000,

Salt 3000 salinity - salt-3000,

$20.99
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Hanna instruments hi70024p - hanna,

Hanna instruments hi70024p - hanna,

$39.00
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Autoutlet salinity - autoutlet,

Autoutlet salinity - autoutlet,

$17.49
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Salinity refractometer salt - refractometer,

Salinity refractometer salt - refractometer,

$15.29
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Salt cell replacement - salt,

Salt cell replacement - salt,

$389.89
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Xtremepowerus universal cell - universal,

Xtremepowerus universal cell - universal,

$499.95
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Sea salt for marine - salt, aquariums

Sea salt for marine - salt, aquariums

$89.95
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Drop salt chlorine - drop-in,

Drop salt chlorine - drop-in,

$161.49
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Milwaukee digitial seawater - digitial,

Milwaukee digitial seawater - digitial,

$155.00
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Tropic marin high precision - tropic,

Tropic marin high precision - tropic,

$42.99
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Salinity refractometer - salinity,

Salinity refractometer - salinity,

$25.30
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Milwaukee ma887 digital - milwaukee,

Milwaukee ma887 digital - milwaukee,

$79.99
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Water quality tester meter pen - water,

Water quality tester meter pen - water,

$20.89
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Api calcium test - test, kit

Api calcium test - test, kit

$13.99
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Tergtiry ppc1 salt cell - ppc1,

Tergtiry ppc1 salt cell - ppc1,

$120.00
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Sea salt for - marine, aquariums

Sea salt for - marine, aquariums

$103.60
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Instant ocean sea salt for - ocean,

Instant ocean sea salt for - ocean,

$49.99
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Api nitrite test kit - test,

Api nitrite test kit - test,

$12.99
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Hydrometer saltwater aquarium - hydrometer,

Hydrometer saltwater aquarium - hydrometer,

$12.95
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Salinity refractometer meter - salinity,

Salinity refractometer meter - salinity,

$15.99
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Ref sea coral - coral,

Ref sea coral - coral,

$30.00
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Aquarium salt freshwater - aquarium,

Aquarium salt freshwater - aquarium,

$12.60
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Eseasongear salt 3050 - eseasongear, salt-3050

Eseasongear salt 3050 - eseasongear, salt-3050

$35.96
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Eseasongear salt 3000 - salt-3000, meter

Eseasongear salt 3000 - salt-3000, meter

$19.99
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Salinity refractometer meter - salinity,

Salinity refractometer meter - salinity,

$15.99
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Hayward salt cell - salt, tcell940

Hayward salt cell - salt, tcell940

$1499.99
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Portable salinity salt - portable,

Portable salinity salt - portable,

$15.99
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Api copper test - copper, kit

Api copper test - copper, kit

$15.49
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Neptune systems apex lab - neptune,

Neptune systems apex lab - neptune,

$149.99
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Aquatics premium shrimp - aquatics,

Aquatics premium shrimp - aquatics,

$16.99
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Api saltwater marine master - saltwater,

Api saltwater marine master - saltwater,

$26.00
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Milwaukee ma887 digital - milwaukee,

Milwaukee ma887 digital - milwaukee,

$82.00
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Fritz 35ppt calibration fluid - fritz,

Fritz 35ppt calibration fluid - fritz,

$17.28
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Seachem prime fresh and - prime,

Seachem prime fresh and - prime,

$11.99
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Api marine saltwater master - api,

Api marine saltwater master - api,

$26.00
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0 100 salinity - 10°c~30°c, 0-100‰

0 100 salinity - 10°c~30°c, 0-100‰

$19.81
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Aquarium hydrometer and - aquarium,

Aquarium hydrometer and - aquarium,

$9.99
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Aquasalt swimming pool salt - aquasalt,

Aquasalt swimming pool salt - aquasalt,

$149.49
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Salt meter 3000 - salt, salt-3000

Salt meter 3000 - salt, salt-3000

$19.99
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Taylor 2006 salt fas - taylor, k-2006-salt

Taylor 2006 salt fas - taylor, k-2006-salt

$127.38
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Api aquarium salt freshwater - api,

Api aquarium salt freshwater - api,

$12.63
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Seachem prime dechlorinator - seachem,

Seachem prime dechlorinator - seachem,

$16.89
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Api aquarium salt freshwater - api,

Api aquarium salt freshwater - api,

$12.46
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100 salinity - 0-100‰,

100 salinity - 0-100‰,

$17.85
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Seachem replenish - seachem,

Seachem replenish - seachem,

$14.49
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Red sea coral - red, salt

Red sea coral - red, salt

$179.99
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Salinity refractometer for - salinity,

Salinity refractometer for - salinity,

$10.00
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Api saltwater master test - api, kit

Api saltwater master test - api, kit

$35.98
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Salinity ppm temperature - &,

Salinity ppm temperature - &,

$26.79
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Api phosphate test - api, kit

Api phosphate test - api, kit

$14.99
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Hanna 98319 marine - hanna, hi-98319

Hanna 98319 marine - hanna, hi-98319

$91.05
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Salinity refractometer - 0~10%,

Salinity refractometer - 0~10%,

$15.99
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Eseasongear salt 3000 meter - salt-3000,

Eseasongear salt 3000 meter - salt-3000,

$26.65
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Icecap salinity temperature - icecap, salinity/temperature

Icecap salinity temperature - icecap, salinity/temperature

$39.00
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Vee gee scientific handheld - gee,

Vee gee scientific handheld - gee,

$49.99
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Atc salinity refractometer - atc,

Atc salinity refractometer - atc,

$14.99
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Deep six hydrometer - six,

Deep six hydrometer - six,

$20.40
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Instant ocean hydrometer - ocean,

Instant ocean hydrometer - ocean,

$15.49
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Instant ocean sea salt for - sea,

Instant ocean sea salt for - sea,

$49.99
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Api marine saltwater master - saltwater,

Api marine saltwater master - saltwater,

$40.99
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Hydrometer aquarium fish - hydrometer,

Hydrometer aquarium fish - hydrometer,

$12.98
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Red sea salt kg bag - red,

Red sea salt kg bag - red,

$103.59
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Hydrospace pns probio 16oz - hydrospace,

Hydrospace pns probio 16oz - hydrospace,

$35.99
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Api saltwater master test - master, kit

Api saltwater master test - master, kit

$46.13
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R0452500 jandy zodiac salinity - zodiac,

R0452500 jandy zodiac salinity - zodiac,

$139.99
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Salinity refractometer meter - refractometer,

Salinity refractometer meter - refractometer,

$17.99
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Reefing art aquarium salt 160 - art,

Reefing art aquarium salt 160 - art,

$29.99
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0 100 salinity - 10°c~30°c, 0-100‰

0 100 salinity - 10°c~30°c, 0-100‰

$17.29
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Lkbird smart pool - smart, salt

Lkbird smart pool - smart, salt

$49.99
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Aquarium salt 33 oz - 1,

Aquarium salt 33 oz - 1,

$20.39
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Complete salt water - water, pool

Complete salt water - water, pool

$377.24
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Hf5 4040 membrane - hf5-4040,

Hf5 4040 membrane - hf5-4040,

$129.50
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📊96 listings · from $8.89 · avg $79.4

Browse 96 salinity listings currently in our index. Prices range from $8.89 to $1499.99, with an average of $79.4. Whether you are hunting for a bargain or looking for a top-spec model, the selection below covers all price points — new, used and refurbished. More about salinity →

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Everything you need to know about salinity

Whether you are looking for a brand-new or second-hand salinity, eBay offers one of the largest selections available online. With 96 active listings at the time of this page's last update, you have plenty of choice across different conditions, sellers and price points. The cheapest option currently starts at $8.89, while premium listings can reach $1499.99 — giving you a wide budget spread to work with. The average price of $79.4 can serve as a useful benchmark: listings below this tend to be used or auction-style, while those above often include extra accessories, warranties, or are sold by professional sellers with high feedback scores. Always check the seller's feedback rating and return policy before committing to a purchase. If you need the item quickly, filter by "Buy It Now" to avoid the uncertainty of auctions. For used items, look closely at the condition description and photos — terms like "good", "very good" and "like new" can mean very different things depending on the seller.

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