4 / 6mm adjustment valve Regulating valve for hose with a diameter of 4/6 mm. The tap can be used for both air and water (nitrate reducer and calcium reactor). High quality plastic guaranteeing a long service life. Easy to adjust flow rate with precision.

T Reduction 16/22 - 4/6mm Reduction T is used for the connection of bypass filters like p. ex. the nitrate reducer or the calcium reactor.

T Reduction 12/16 - 4/6mm Reduction T is used for the connection of bypass filters like p. ex. the nitrate reducer or the calcium reactor.

T Reduction 9/12 - 4/6mm Reduction T is used for the connection of bypass filters like p. ex. the nitrate reducer or the calcium reactor.

NP-Minus BioPellets 3500ml Important: operating ONLY in a biopelletreactor or fluid bed filter ! The highly active NP-Minus BioPellets consist of 100% biodegradable polymers. These dissolve over a period of several months and act as a carbon source for aerobic bacteria and other microorganisms. The pellets act as a food source for these microorganisms....

NP-Minus BioPellets 500ml Important: operating ONLY in a biopelletreactor or fluid bed filter ! The highly active NP-Minus BioPellets consist of 100% biodegradable polymers. These dissolve over a period of several months and act as a carbon source for aerobic bacteria and other microorganisms. The pellets act as a food source for these...

CO2 solenoid M-ventil 1/2" M-ventil 1/2”  for water is intended for automatic control of reverse osmosis units. The brass body has connections for 1/2” BSP male fittings and is recommended only for use with tap water. The power uptake is 6 watts.

Bubble counter Grotech Diameter 50mm, Lenght 200mm with hose connectors and holder.

Bubble counter plus

ZEOvit ZEOvit® is a balanced mix of different zeolites. It is an absolutely natural Zeolite mix of highest quality. Run the ZEOvit® in a special ZEOvit® filter. Please note: 1. The ZEOvit® always has to be clean. To clean the material, push and pull the rod of the filter daily, which can be done simple, fast and easy within a minute. 2. If...

ZEOvit for automatic Filter ZEOvit for automatic filters is a balanced mix of different zeolites. It is an absolutely natural Zeolite mix of highest quality. Right now the new and additional ZEOvit version is available. The mixture with bigger ZEOvit media get the material not jammed any more – it is concipated for the normal ZEOvit filters and especially...

ZEOmag Magnesium Granulate 1kg ZEOmag is a pure magnesium granualte. Mix with the coral gravel media at a rate of 10 – 30 % and fill into the calcium reactor. Coarse grain of 6 – 12 mm. Increases magnesium without chloride sulphate. Recommended in any tank system.