ISTA 3 in 1 CO2 Diffuser M

• Three functions in one, CO2 bubble counter, check valve and diffuser.
• Assure the best diffusing effect.
• Acrylic material allows accurate CO2 bubble reading.
• Easy assembling for filling up water, replacing and cleaning ceramic.
• Stainless steel spring check valve effectively prevents backflow.
• Specific material of suction pad for acid, harden resistant and longer operation life.