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Forum topic by HackFabrication posted 03-24-2019 08:43 PM 437 views 0 times favorited 17 replies Add to Favorites Watch
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HackFabrication

111 posts in 45 days


03-24-2019 08:43 PM

Finally got around to mounting my Powertec filter to the floor joists in my basement (still need to pretty up the wiring):

Has anyone used a different primary filter with this? The PowerTec is $20 a pop, but I can get these: https://www.amazon.com/dp/B00CK04GC6/ref=sspa_dk_detail_0?psc=1&pd_rd_i=B00CK04GC6&pd_rd_w=Izow6&pf_rd_p=733540df-430d-45cd-9525-21bc15b0e6cc&pd_rd_wg=IFadU&pf_rd_r=ACTZAHNRBFV27C7GAST9&pd_rd_r=5ff22130-4e73-11e9-a88d-f3fb2fdf5a48 for $55 and that’s for 6 filters. MERV 13 rated, the dimensions are the same as the P’Tec.

Thoughts?

-- "In the end, it's all Hack..."


17 replies so far

View Rayne's profile

Rayne

1172 posts in 1873 days


#1 posted 03-24-2019 08:53 PM

I buy these: Wen Air Filter 2 pack:
https://www.amazon.com/gp/product/B00P84QE6C/ref=oh_aui_search_asin_title?ie=UTF8&psc=1

$20 for 2 pack is much more manageable. The ones you listed are far thinner than the filters that go in these things. Probably losing a decent bit of surface area for capturing fine dust and I also think the filters are in metric. I seem to recall the sizes you posted doesn’t actually fit into these units.

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HackFabrication

111 posts in 45 days


#2 posted 03-24-2019 08:59 PM

Although they are listed as 12×24x1, they are actually 23.5×11.5, according to the packaging description. I’m unsure of the thickness, it they are a true 1” or not. The Powertec is 11 1/2×23 3/8×7/8 .

-- "In the end, it's all Hack..."

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Rayne

1172 posts in 1873 days


#3 posted 03-24-2019 09:10 PM

Ah, the nominal listing. That might work then, but still too thin. I don’t think your outer filter is only 7/8” thick. I have the Powertec Unit as well as a Wen and both of those are 2” thick (probably 1-7/8” thick). Maybe one on top of another might work though with the amazon one. Couldn’t tell you the effect of a setup like that though.

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HackFabrication

111 posts in 45 days


#4 posted 03-24-2019 09:14 PM

I just pulled the OEM filter off the unit and it’s only 7/8” thick. The inner, 1 micron filter is a lot bigger.

-- "In the end, it's all Hack..."

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Rayne

1172 posts in 1873 days


#5 posted 03-24-2019 09:30 PM

That’s the strangest thing because the Powertec $20 filter is 2” thick in the listing on amazon. Never seen one with a filter that thin. Hey, if it’s 7/8” thick and designed that way, then by all means go for the amazon listing then. Can’t hurt to try. I sure would.

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HackFabrication

111 posts in 45 days


#6 posted 03-24-2019 09:39 PM

Thanks!

Yeah, I think I’m going to head over to HD, Mennards, or Lowe’s and see what the measurements really are on their 12×24 filters before I spring for $60 worth of filters on Amazon.

The PowerTec 75020 is what I have, and Amazon has the measurements wrong in their listing. No way would a 2” filter fit on the rear of the machine and the hold clips work.

At $20 a pop, there has to be an alternative. And perhaps and even better alternative.

-- "In the end, it's all Hack..."

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Rich

4277 posts in 923 days


#7 posted 03-25-2019 01:24 AM

I use these MERV 4 filters that are very inexpensive at around $3 apiece. I tried a single filter from the big box store to see if that level of filtration would work and it did fine keeping the inner filter very clean. Even now after going through 3 or four of them I got from Amazon, it’s still staying clean inside. When I had the original filter from Home Depot and hadn’t gotten around to ordering a box of them, I even took it down and knocked it clean a couple of times without any problem. Of course, with a box of them now, I just replace them.

There are also washable models if you want to go through the hassle.

-- Half of what we read or hear about finishing is right. We just don’t know which half! — Bob Flexner

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HackFabrication

111 posts in 45 days


#8 posted 03-25-2019 10:50 AM

Thanks Rich! I’m not going through the hassle of washing out filters. I have to do that with the electronic filter on my furnace every 4-6 months, and it’s a RPITA. The OEM Powertec pre-filter is rated at 5 microns, and with only three months of usage, the inner 1 micron filter is showing signs of use. That’s one of the reasons I’d like to catch some of the finer particles before they get to it. Cleaning the inner filter looks to be a summer project, as it can be washed, but needs to thoroughly dry before putting back to use. And Powertec does not recommend using compressed air on it.

On a side note, the Powertec air filtration system does work quite well. I had been using it sitting on a pair of saw horses, and it filtered a lot of airborne dust out of my basement work shop. I’m hoping, in combination with my recently acquired (and improved) HF DC and adequate tool connections/dust ports, that I will get most of the dust under control.

Like everything, it’s a work in progress….

-- "In the end, it's all Hack..."

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Steve

1187 posts in 916 days


#9 posted 03-25-2019 02:06 PM

Not to hijack this thread too much, but how often do you guys replace the filters? I have the WEN unit and I’ve just taken out the filters and blew them out a couple times so far.

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Sawdust2012

171 posts in 2046 days


#10 posted 03-25-2019 04:58 PM

I’m pretty consistently replacing mine about 3 months after they need it.

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HackFabrication

111 posts in 45 days


#11 posted 03-25-2019 09:32 PM



Not to hijack this thread too much, but how often do you guys replace the filters?
- Steve

I’m probably going to be on the 3-6 month rotation, depending how much time I spend in the shop making dust. I’ve only own the Powertec since Christmas, and I’ve vacuumed off the pre-filter once. The inner filter is starting to signs of accumulation, so I’m going to upgrade the pre-filter to something a bit finer.

-- "In the end, it's all Hack..."

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HackFabrication

111 posts in 45 days


#12 posted 03-31-2019 12:20 PM

So just an update: The filters I ordered from Amazon came and they were the wrong size and MERV rating. I was sent a 4 pack of MERV 11, 16×25x1 filters, instead of the MERV 13 12×24x1 filters. I order again, and again was sent the wrong filters (actually the same MERV 11 filters came again). A quick call to Amazon, and I got a free return and instant refund on both shipments.

No the downside: Amazon is going to remove the item pending investigation as to ‘what went wrong, and where it went wrong’. I’ll probably just head to a big box store and see about getting one of the finer filters to test out.

-- "In the end, it's all Hack..."

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bondogaposis

5327 posts in 2685 days


#13 posted 03-31-2019 12:57 PM

I use Purolator Merv 8 filters that I get from Global Industrial for $ 48/12. I replace or blow it out once a month and replace the inner filter every 6 months. I get the inner filters from Wynn Environmental.

-- Bondo Gaposis

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HackFabrication

111 posts in 45 days


#14 posted 03-31-2019 07:43 PM



I use Purolator Merv 8 filters that I get from Global Industrial for $ 48/12. I replace or blow it out once a month and replace the inner filter every 6 months. I get the inner filters from Wynn Environmental.

- bondogaposis


Thanks! I’ll definitely look iinto ordering them.

-- "In the end, it's all Hack..."

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HackFabrication

111 posts in 45 days


#15 posted 04-06-2019 07:10 PM

I ended up getting a 6 pack of Merv 8 filters off Amazon: https://www.amazon.com/gp/product/B00CK00Z08/ref=ppxyodtbasintitleo01_s00?ie=UTF8&psc=1

The Powertec filter measures: 23 7/16 x 11 5/8 x 7/8. 5 micron rating

The Filter Buy actual measurements are: 23 3/8 x 11 7/16 x 3/4. Merv 8 rating

There is a little bit of space around the filter and frame, but not enough to cause any issues with air leakage. The clips, although not as snug as with the original Powertec filter, are satisfactory for holding the filter in place.

Surprisingly, or not so…., the cheap-o filter 12 x 24 x 1, I bought at Menard’s was a bit oversized and was a very snug fit.

Will update when I start making dust in the shop.

-- "In the end, it's all Hack..."

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