What's the difference to a MERV 11 filter of the same size?
1652355
They should both work but the MERV 12 wil remove more particulate matter from the air.
1285717
I do not work for the company represented here, but the best thing you can do is measure your filter element. They can tell you if they have the proper size.
1779603
A filter with a MERV 11 would be a more restrictive filter than a MERV 8. The 11 would catch more fine particulates, but it may also stress the heat and A/C system by not allowing sufficient air to go through. I would stick with the MERV 8 unless you have the need for super clean air in your home.
1775544
as long as the thread size is correct there is no problem, filters are interchangeable. :)
325264
I ordered the Merv11 and it was the correct size and labeled Merv11 on the filter.
276142
The one I received was the same as the larger of the teo filters that came with my machine.
1779600
A MERV 11 filter will remove 85% of particles down to 1 or 2 microns as opposed to a MERV 8 which will remove 70% down to 3 microns. In other words the MERV 11 removes a greater Percentage of finer particles but will restrict air flow a little more especially as it gets dirty. My heating unit was designed to take a MERV 11 filter and is what the manufacturer originally installed.
2011472
Buyer beware as there are a TWO different filters being sold under the SAME basic HC-504 nomenclature. The original/good version is 1.25" thick, whereas many of the more recent offerings are only 0.75" thick, therefore with MUCH less moisture-delivering efficiency/life, yet at the same price. Worse yet, often the images shown in Amazon are dimensionally proportional to the original/good ones but what they really ship is the inferior version - I know because I just returned six filters to Amazon but got stuck with shipping charges and wasted time. Someone else suggested another source (filters-now dot com) and I'm sending them an inquiry based on the above. (PS- some of the filter offerings tout a blue "dust catching" wrap that IMHO is pure marketing hype.)
1780788
I have been using theses filters for ever, I would suggest moving up to one size bigger, the larger has an extension tube that comes with it, this one only goes about 6" into the water. When it comes to filtration, bigger is better if you have room, the larger has 2 chambers/holds 2 media inserts, you will be much happier and the tank will be much cleaner, and there isn't a lot of difference in the cost.
158624
Yes, it is the same filter. I have both types of boxes and use them in each
1293077
physically the same size ...just that the CW-F is designed for well drawn supplies and only 20 microns of filtration..i went from a 10 micron to 20 ..because it seemed i was replacing the filter too often...and this CW-F is what we use now...without issue.
364167
The 204 parts are smaller the impeller /shaft and cover are totally different/way smaller/the 304,305,404 and 405.parts are the same,except the handles and outer parts and canisters,where you can clearly see a difference.Fluval the best filter out there.(I have four running quietly as we chat)Go get em Mike
360244
I'm not sure as I've only had the plug in smaller version. But there is a noticeable difference when I use the filter as oppose to not using it
1848652
I looked at both system filters and they are the same, so no difference I see.
1890255
There is no problem in using a filter bigger than what you need. Every model has a limit, as long the model is for a bigger tank than you have is OK.
49453
Most systems use a universal size filter... If your filters measure apx 2 3\4x 9 7\8... then use should be alright
1144909
It looks like the same filter . I think it is probably the same size and would fit.