I have a Skil 100 (type 4) and a modified Hitachi P20SB planer. A friend of mine has 3d printed an awesome adapter for both the Skil 100, and the Hitachi. They use the same connecting piece, so I am able to switch from planer to planer if I need/want. I just twist the base of the hose, and pull the hose out of the female fitting and attach, turn, and lock the hose into the other planer.
The Hitachi version uses two bearings so the vac hose never gets all twisted up, and it flows/moves easily and free. I have shaped a few boards with this setup and love it
The Skil version uses just one bearing and keeps the hose from twisting. Just shaped my first board with this adapter and its pretty great
I have used a few different (homemade) adapters and ways to keep a hose on the planer, but this is by far the best thing I have ever used
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if anyone is interested…
Hitachi: ($30) Hitachi P20SB Dust Collector Adapter – Rock and Sea Garage Board Shop
Skil: ($35) Skill 100 Dust Collector Adapter – Rock and Sea Garage Board Shop