Best vacuum & dust collector ducts according to redditors

We found 2 Reddit comments discussing the best vacuum & dust collector ducts. We ranked the 2 resulting products by number of redditors who mentioned them. Here are the top 20.

1. Horti-Control P 700975 dust Shroom, 8 inch

1 mention
Horti-Control P 700975 dust Shroom, 8 inch
Used to clean and re-oil your Dust ShroomSimply install this filter on your incoming air ductBrand: Horti ControlItem Weight: 2.6 lbs
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2. Woodstock W1039 Universal Reducer

1 mention
Woodstock W1039 Universal Reducer
9-1/2-Inch length by 6-Inch width by 6-Inch diameter
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Top Reddit comments about Vacuum & Dust Collector Ducts:

u/teshreve · 2 pointsr/gpumining

Thanks for the post. I have seen a few of these before, but this one motivated me to finally order everything. I have been wondering what I was going to do this summer. Currently my rigs costs me about $8.50 a day in electricity, but saves me about $5 a day since it is literally heating my entire house.
@ .12 kwh the fan at full speed costs $.55 a day. I ordered a bigger tent and 2 of the fans. Hopefully I can run them at some lower percentage (they come with controllers).

This is what I ordered:

u/Bubblegoose403 · 1 pointr/woodworking

Most stores carry a reducer like this one. https://www.amazon.com/Woodstock-W1039-Universal-Reducer/dp/B0000DD2TM/ref=as_sl_pc_ss_til?tag=dustin0e-20&linkCode=w01&linkId=AYHNQSDA4J7ZGLKQ&creativeASIN=B0000DD2TM