what is the difference between the Merv 8 and the Merv 11?
1950241
not sure but I think it has something to do with the size of particles filtered out. Higher number/smaller particles?
1950242
Sorry I wish I could help but I don't know the answer to your question. Try someone else
1950243
3. :-). It's got something to do with the density of the filter. The higher the number the more tiny the particles it can trap. However, this also cuts down on airflow and will cause your system to need to run harder or longer, which will raise your energy bills. My research into the matter suggested 11 or higher is for commercial/industrial needs. But 8 was deemed efficient enough / recommended for residential purposes. I hope that helps.Dontcha hate it when you ask a question and someone responds "Google it"?
1950244
The MERV scale identifies the particle size that can be filtered. The higher the number, the smaller the particles that are filtered (as in, a MERV 11 filter traps smaller particles). That seems like it would be the better filter, BUT it usually isn't for a home system, because it makes the a/c and furnace work harder to pull the air through the filter. Your manual will tell you what is best for your system. I have asthma and cats but find that the MERV 8 is indeed the best one to use for my system for peak efficiency and filtration. Hope that helps!
1950245
3. :-). It's got something to do with the density of the filter. The higher the number the more tiny the particles it can trap. However, this also cuts down on airflow and will cause your system to need to run harder or longer, which will raise your energy bills. My research into the matter suggested 11 or higher is for commercial/industrial needs. But 8 was deemed efficient enough / recommended for residential purposes. I hope that helps. Dontcha hate it when you ask a question and someone responds "Google it"?
1950246
The difference is what is filtered the higher the Merv number the small the particles that will be filtered. You can Google Merv to get a more detail definition.
1815149
There was a functional difference once. Now they are essentially identical. The only difference is color. (I have an HJ-112 and it says HJ-112M(113) on the back. It's identical in shape and function to the HJ-113.)
69409
The only difference is the adapter for the smoker. The 110 comes with a plastic threaded piece and the 120 comes with a metal bowl looking one.
1428721
I believe the difference are the depths. I would not say the 6 qt. is bigger because it is more shallow but seems to be wider. Where the 8 qt. is less shallow and probably not as wide. I got the 8 qt. and it really is a great size for everything we use it for.
2190973
I don't know. I read the info on both and no differences were indicated. Made me wonder if it was different suppliers.
976280
You can purchase a wide range of MERV numbers but you should be using a fiter with a number that your unit was designed for. Refer to your owners manual or the filter unit for the correct filter.
2119922
The specs are about the same, but the RTR-EV 1200 is a newer model and has only been on the market for a couple of years. Also, they are ported differently.
13739
I had this same question, and found this link: https://strivenindustries.zendesk.com/hc/en-us/articles/200372840-MERV-vs-MPR-rating Essentially, MPR of 1500 or over is MERV 12.
389908
The Filtrete Ultimate Allergen 1900 MPR rating, which is the same as a Merv 13 rating. Filtrete uses the MPR rating instead of a Merv rating, that is why we do not have a Merv rating listed.
880791
I'm not sure what the MERV rating is, but I can tell you that these filters have been great.
825089
I have no idea about the CADR and MERV rating. I sent this over to my son in Afghanistan as the dust was so bad over there. He said it worked great and was easy to clean as well. So I'm just giving you second hand info but hope it helps. It made life more bearable for him.
1299109
Check this link for different MERV... http://www.mechreps.com/PDF/Merv_Rating_Chart.pdf
562510
Just bought one at Costco, days later they are out until November! Model number is MMF07 as is the one offered on the manufacturer's website so I think it's safe to assume it's the MMF07 is the current and this 2012 MMF06 is the immediate predecessor. I'm recommending it to a friend who didn't get to Costco soon enough.
2142249
The 7 in the 742 series denotes the mid-tier product, while the 8 in the 840 series denotes the top-tier product, which has more "features". Whether you need those features is up to you. There is also a 600 series available (640, 642), which is a lower-tier model. The 40 in 840 means it is a 2011-12 model, while the 42 in 742 means it is a 2012-13 model, so you are comparing two model years as well as two feature tiers. Go to mitsubishitv.com, where there are specification sheets available for comparison of the different models.
1133930
I own both and the are essentially identical except in one aspect. They are the same size and capacity and made with the same parts and electronic controls. This difference is that the 700, that I bought 9 years ago, included a special KF antimicrobial filter in it that is not mentioned in the new 220. It obviously cut the mfr's cost but has no impact on the softening ability of the unit that I've now owned a few months, running flawlessly. Very easy to install and set-up so long as you provide the in and out plumbing.
1763889
I don't see a difference - the only thing I can see in the product description the os2018 is a newer version and weighs less. I love it - makes a huge difference.
1050341
MERV rating is a fabricated numbering system created by Filtrete. The higher the number the more particles it can remove from the air. This numbering system, however, is not used by any other filter manufacturing company and therefor is biased.