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Refractometers & Hydrometers

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JBL Pro CO2 Permanent + PH Test Kit
£14.99
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JBL Pro Carbonate Hardness Test Kit
£8.99
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JBL Pro Ammonium Test Kit
£15.55
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JBL Oxygen Test Kit to check the health of aquariums or ponds and keep conditions close to nature.

JBL Oxygen Test Kit
£14.70
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Only 2 left in stock

JBL Nitrite Test Kit
£9.99
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Only 3 left in stock

JBL Pro PH 6.0-7.6 Test Refill
£4.99
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JBL General Hardness Test Kit
£9.17
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Only 5 left in stock

JBL Pro Test Lab Tropical the most accurate test kits on the market

JBL ProAquaTest Tropical
£74.99
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highly accurate testing of saltwater aquariums with the Pro Test Lab Marin

JBL Proaquatest Lab Marin
£89.99
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JBL Pro Test CombiSet Plus Iron
£35.99
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JBL Pro Test CombiSet Marin Accurate test kit for marine aquariums

JBL Pro Test CombiSet Marin
£39.99
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TDS Pen
£22.99
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Only 1 left in stock

JBL Pro Silicate Test Refill
£10.62
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JBL Pro Phosphate Test Refill
£9.17
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JBL Pro PH 7.4-9.0 Test Refill
£5.99
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In stock

Colombo Iodine Test Kit
Was £12.49
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Out of stock