How to connect PVC to Harbor Freight Dust collector?

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Forum topic by scotchleaf posted 10-13-2016 02:15 PM 3170 views 0 times favorited 6 replies Add to Favorites Watch
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9 posts in 1939 days

10-13-2016 02:15 PM

I’ve been searching high and low for an adaptor or pipe to connect my 2hp HF Collector to the end of a PVC pipe. Any standard solution? I’ve seen this thread, but don’t want to invest the time in the thein baffle yet. Any help would be appreciated!

6 replies so far

View syenefarmer's profile


512 posts in 3280 days

#1 posted 10-13-2016 02:47 PM

Use a Fernco style coupling.

View WhyMe's profile


1073 posts in 1761 days

#2 posted 10-13-2016 02:56 PM

DWV PVC Pipe To 4-Inch Port Dust Collection Adapter Fitting.

Unless you are trying to come off the 5” intake of the blower without using the HF ‘Y’, then the Fernco maybe the answer.

View tmasondarnell's profile


102 posts in 1989 days

#3 posted 10-13-2016 03:06 PM

Do you have the right type of 4” PVC? Remember, there are two “types” of 4” PVC at your local Borg home center and they intentionally have different ID/ODs so they are not interchangeable.

First type is Schedule 40 which is designed for pressure. It have much thicker walls and there will be all types of interesting fittings and connectors. This is not that type that works with most dust collection fittings/hoses

Second type is DWV which is for “drain, waste, vent”. This will have much thinner walls and usually only a few types of fittings. This is the type of pipe that works with most dust collection fittings.

The link that WhyMe has is for a fitting that will work with DWV PVC pipe but not schedule 40.

View CharlesA's profile


3351 posts in 1997 days

#4 posted 10-13-2016 03:25 PM

When I got stuck trying to get the right things to connect, I used this or a variation:

-- "Man is the only animal which devours his own, for I can apply no milder term to the general prey of the rich on the poor." ~Thomas Jefferson

View scotchleaf's profile


9 posts in 1939 days

#5 posted 10-13-2016 04:46 PM

Thanks very much, all. I learned about the different diameters today, the hard (and expensive) way.

View twoblacklabs's profile


262 posts in 2891 days

#6 posted 10-15-2016 02:37 AM

I may be way too late but it might help someone else.

I too had a hard time using 4” PVC. Ended up wrapping electrical tape thick enough to act as a bushing. Then I got smart. I determined that the 4” green SDR-35 PVC Sewer pipe fits PERFECTLY over all of the standard black fittings including the plastic blast gates.

Spray paint it with Plasticote if the color bothers you.

It WILL NOT fit into 4” Flexible hoses however.

-- If You Haven't Got the Time to Do It Right, When Will You Find the Time to Do It Over?

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