Shop Vac Dry Filter Mounting Ring

ring is 4.95 on amazon. but I'm cheap. bought a new sponge and dry filters at Walmart and realized my ring is lost. printing this takes about 2 hours and cost .50c and you have it.
no need for heavy infill. just do 10% and .2 layer height or even .3 or .4 for faster printing. it doesn't need to be pretty.