Bell Siphon Endcaps

This is the top and bottom endcaps for the bell siphon of the grow bed in my aquaponics system.

My bell siphon parts include:
Top and bottom endcaps (3D printed)
1" PVC pipe
1" PVC pipe coupler (for the top)
4" drainage pipe ($5 at Home Depot) for the gravel shield

The endcaps attach on the bottom and top to prevent gravel from spoiling the bell siphon.

Pictured is the original version. V2 has thicker limbs and is more of a snug fit to prevent sliding and breaking.