PVC Tube Plug

This is a plug for the 1" SCH 40 PVC pipe used to complete Thing 2863864 (Tevo Tornado Control Box Filament Spool Deluxe - https://www.thingiverse.com/thing:2863864).

I used:

thickness = 3
rInner = 13
rOuter = 19
height = 12
slitWidth = 4
slitHeight = 12
numSlits = 4