Gravel filter for python aquarium siphon adapters. Designed for 1 inch siphon tube. Inner diameter of tube is 25.5 mm and can be scaled to fit other sizes.

Gravel Siphon Adapter: Adapter with filter feature.
Gravel Siphon Adapter_V2: Adapter with no filter feature. Best used for improving siphon coverage area for more effecient cleaning. Also small rocks will not get stuck or impede filter mesh compared to the other version.

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Lay flat on filter tip end for no supports (or as per current STL orientation).