Hiwi is a reputable German manufacturer for CO2 pressure reducers. Highest quality and durability are in the foreground here. However, such high quality standards by no means exclude attractive prices.
Especially in aquascaping, CO2 supplementation for the plants is indispensable, which is why the choice of good CO2 components is very important. Hiwi meets high-quality requirements in every respect and is the optimal choice for CO2 pressure regulators.