UP AQUA A-617C / A-618-B AIR TUBE Soundtech19 A refractometer is a valuable

A refractometer is a valuable tool for accurately determining salt content

Stainless steel blade to easy cleaning

so store freshly mixed saltwater in a tightly closed container if you don’t use it right away

If iron flowers (flos ferri) occur

flake-like granulates and the special sinking behaviour promote rapid acceptance

UP AQUA A-617C / A-618-B AIR TUBE Soundtech19 A refractometer is a valuableA 618 B black air duct: Length: 100M Suitable for air pumps and CO2 equipment. The air pump motor and CO2 cylinder pipeline are equipped with necessities. The caliber size is 4 6mm. A 618 light green air duct: Length: 100M Suitable for air pumps and CO2 equipment. The air pump motor and CO2 cylinder pipeline are equipped with necessities. The caliber size is 4 6mm.