Practical Garden Ponds 3" Air Diffuser for Under-Gravel Suction Grid Natural Kote These Pro-Series waterfall spillways have

These Pro-Series waterfall spillways have a plastic grating just below the water level that not only keeps the walls from bowing when buried in the ground

Slide lock connection system

Includes winter-resistant 3/16" silicone airline with preassembled check valves

Product SKU 50040 UPC Code 706759500401 Description SwimSkim Floating Skimmer

Practical Garden Ponds 3" Air Diffuser for Under-Gravel Suction Grid Natural Kote These Pro-Series waterfall spillways haveThis Practical Garden Ponds 3" Air Lift Diffuser is an ideal item for mounting on 3 4" PVC to go down the center of a 4" Lift tubes in Airlift Under Gravel Suction Grid Applications.