ISTA 2 in 1 Metal Bubble Counter & Check Valve DOOA Aquarium Rinse briefly with lukewarm tap

Rinse briefly with lukewarm tap water before use to remove any abrasion rubbed off during transport

Apply small amount of AF Gel Fix to the surface to which you want to stick the frag and immediately stick it to the designated place

East Ocean Aquatic is the official distributor for SunSun

Strong flow and high water lift

Made from pure and natural sand minerals

ISTA 2 in 1 Metal Bubble Counter & Check Valve DOOA Aquarium Rinse briefly with lukewarm tapFor metal CO2 Air flow controller 6 ways, 3 ways and controller. Made of durable material assures long usage time. 2 functions in 1 product, CO2 bubble counter and check valve. Stainless steel check valve effectively prevents water backflow.