SINTERED by High Temp and pressue-Extremely strong even in harsh conditions

Cylindrical Air Diffuser Stones 

Approximetely 5" 

For Koi Ponds, Fresh or Saltwater aqauriums, aquaculture, fish hatcheries and more. 

New!

Ships in a box to ensure safe arrival.

Combined shipping available for purchase of multiple units.  Put into shopping cart and select 'Request Invoice" or simply message us.