Elbow PVC Bulk head // tank fitting Ø 25mm grey Drill diameter : 28mm/38mm

Mastertronic Measures PO4/ NO3/ Ca / Mg / dKH* / OLI (may add parameters in near future) • High Precision Stepper and DC Pumps • State of the art colorimetric photosensor • Simple to use iOS and Android App (Wifi). Focustronic App (all in one) • Communicate with Alkatronic/Dosetronic/Solartronic/Powertronic: local wifi via router •...

90° elbow PMMA 25mm

Safety valve with float The float mechanically shuts off the RO water if the level in the compartment exceeds a limit you set.

Ribbed hosing 40mm 1m lenght

Ribbed hosing 32mm 1m lenght

Ribbed hosing 25mm 1m lenght

Marine professional Test kit for I2 iodine Iodine is a chemical element with the symbol I. Iodine is extremely important for most reef species, especially invertebrates require it to sustain their cell functions. The iodine concentrations in the different oceans across the world varies from 0.025 &ndash; 0.064 mg/l.<br...

Potassium test Salifert

PVC True Union Ball Valves white/red &Oslash;&nbsp;32mm&nbsp;

PVC True Union Ball Valves white/red &Oslash; 20mm

Strontium Test Salifert Strontium plays an important role by accelerating coral and calcareous algae growth. NSW contains approx. 7 – 9 mg/L strontium. Since the growth of corals and calcareous algae goes hand in hand with strontium and calcium depletion, depletion of calcium usually means depletion of strontium as well.