Digital Inline TDS - Titanium S2 Titanium S2 is an TDS meter in-line, with 2 probes , which allows you to measure, very simply and accurately monitor dissolved solids (TDS) at 2 locations of your choice, usually at the inlet and outlet...

Digital Inline TDS - Titanium One Titanium One is a small, in-line TDS meter that enables you to measure and monitor dissolved solids (TDS) very simply and accurately at a location of your choice, usually at the inlet or outlet of a reverse osmosis plant. It allows you, for example, to see immediately...

Marinepure PLATE 20x20x2.5cm Designed for Ammonia and Nitrite Removal under high flow. Deep pore structure will allow development of low oxygen zones, which will help with control of nitrates. Perfect for the creative hobbyist as it can be easily shaped. Use in sumps, between baffles, shape to fit in tight/custom places.

Marinepure BLOCK 20x20x8cm Ammonia, Nitrite & Nitrate Removal Primarily designed to provide deep anaerobic zones for de-nitrification in passive or low flow systems. Live rock substitute Use in Aquarium sumps