A very high-quality German CO2 check valve for freshwater or marine applications. A mid-level & mid-priced, quality check valve between the Metallic and the Plastic units. Takes 4/6 mm (ID/OD) or 1/8" airline tubing.
Mr. Aqua Glass Blown Bubble Counter Specifications:
Use to count Co2 bubble dispense in planted aquarium
Compact design, durable construction.
Can be cleaned. Instructions: When installing pressure pipes from the ...