UltraZap diffuser disks are bottom-sitting air diffusers that spread a steady column of fine bubbles across the floor of a pond, aquarium or fish tank, so oxygen reaches where the fish are.

Connect one to an air pump line and drop it on the bottom. The weighted-base version stays put where currents would shift a plain disk — useful in flowing ponds and deeper water.

Good to know:
– Two options: plain diffuser disk, or disk with weighted base
– Sits on the pond or tank floor and spreads aeration evenly
– Connects to standard airline tubing and air pumps
– Weighted base holds position in current
– For ponds, aquariums and fish tanks