TWINSTAR DIFFUSER "CLASSIC STYLE" (MADE OF HIGH QUALITY ACRYLIC) - Medium (17mm) The Twinstar "Classic style" CO2 diffuser uses microspore ceramic stone to produce super fine bubbles. These Micro-bubbles will last longer in the water, which increases its carbon dioxide solubility efficiency. It is made of transparent acrylic, which is not easily broken unlike other cheap glass diffusers when separating from the aquarium for cleaning. With the unique ceramic stone and Acrylic bonding technologies, they are durable enough to withstand high pressure for extended reliability. Various sizes available (Small, Medium, Large) for tanks up to 250L/65 gallon. Microspore ceramic stone produces ultra fine bubbles. Micro-bubbles will last longer in the water, increasing its dioxide solubility efficiency. Transparent acrylic design & Shatter-proof. Unique ceramic stone and acrylic bonding technologies that is durable enough to withstand CO2 system's high pressure. Compact and light weight design. CO2 is key to photosynthesis and a healthy planted aquarium. Size Diameter Aquarium Size Small Ø12mm 5~10 gallons (20~40L) Medium Ø17mm 10~30 gallons (40~120L) Large Ø23mm 30~65 gallons (120L~250L) Directions Rinse glassware with warm water. Attach suction cup and desired tubing (Compatible with 6 mm (1/4") - Standard Airline Tubing) to the diffuser. To attach tubing to diffuser, wet the inside of the tubing with water at the attachment point and carefully slide tubing over diffuser stem. To avoid breakage when removing tubing, do not pull tubing off of diffuser. Instead, cut tubing carefully along the attachment length to release the diffuser. Mount your diffuser using the suction cup(s). It should be positioned low in the aquarium. When removing or repositioning the diffuser, pull by the suction cup(s) rather than the diffuser stem to avoid breakage. Install check valve (not included) inline with tubing outside of the aquarium Once securely mounted, turn on CO2. Observe bubble count and adjust CO2 to desired flow rate.
