Specification: height 1.7cm diameter 1.2cm

Caliber (water pipe places): 4mm

Product features:

High-temperature sintered bubble stone is made by high-temperature sintering, which is different from ordinary commercially available bubble stone. The material is strong and durable, and can be washed repeatedly for a long time.
\ Instructions for use:
\ 1: Can be used directly. Long-term use, such as dirt blocking and bubble reduction, can be taken out for cleaning and repeated use.

Note:
\ When this product is used for the first time, if it is found that there is no air outlet in some places, the air pump you use is not enough on the surface. Please replace the more powerful air pump, and purchase oxygen hose and other small accessories separately.