I don't know the diameter but it does fit perfectly inside a dryer duct hose. That's the hose I bought, I got it from walmart. I will modify this thing the nest go around to make it more like a cigarette filter, without all those holes on the side and half the carbon. I'll check out yours though too. I just only had quick access to walmart back then and they don't have all those fittings and chicken wire .
jiggsaw Reviewed by jiggsaw on . 9 dollar carbon scrubber. This is the simplest and cheapest way to make a carbon scrubber. You can get everything at walmart. For this to work you need an exhaust fan and some dryer duct , or whatever duct will work. Here's the list and prices. 1. Activated carbon in plastic tub. $5.97 2. Knee high panty hose $.39 cent. 3. duct tape $ 2.00 The tools you need are either a soldering iron, a drill , or a screwdriver to poke holes. 281123 This is the carbon to buy. 281124 First you take off the lid and wrap the knee Rating: 5