What do they mean by "Dual Purpose"?
1974346
Probably since it comes with a filter cartridge and a basket for carbon granules..........also due to the large filtration capacity...take your pick as to what makes sense to you but it is an awesome filter and the only one I have used for years and years............
1974347
It means it can easily be changed from a "continuous duty mechanical/chemical" filter to a "water polishing" filter. I run two on my 90 gal. tank and one is dedicated to water polishing only. My tank water is always CRYSTAL CLEAR. Hope this helps.
1974348
It means it can easily be changed from a "continuous duty mechanical/chemical" filter to a "water polishing" filter. I run two on my 90 gal. tank and one is dedicated to water polishing only. My tank water is always CRYSTAL CLEAR.Hope this helps.
1974349
The Marineland Filter has "two" filters. A Carbon media filter, which I use the most. It filters dirt and "crud" out of the water (we use it for turtles, they can be very dirty) keeping it clean for a longer time. The second filter is what they call a micron filter. I have only used it once, but it also cleans the water (actually "polishes it" if that's possible). But, because we have turtles I find the carbon filter is my favorite.
228899
It does do both functions. Unfortunately it does them both at a sub standard level.
2139636
I do not know it's purpose, however I am confident it is part of the unit design/function.I would not remove it. It almost appears to be a filter for the unit fan. Again not sure.
1870257
Yes, it serves both purposes and to be honest I have not installed it, because I mainly bought it as a back-up in case my present one quits.
383815
It can work as both. We have it built in and it looks great but would look equally as nice standalone.
1014041
Not two processors; a dual processor. Pretty common, actually. That means it can execute two programs simultaneously; two virtual processors.
2228386
The dual is a pair. You can find a single unit be searching for the HBC220 (without the D)
1913567
my understanding is that it does both but it is a good question none the less.
2110247
It is for connecting two devices to one usb port, in and of itself it provides no power whatsoever, nor does it in anyway provide or enable whatever software is required to make devices work. Clear? It is excellent for connecting two non-powered items such as a key board and mouse. In addition there is no switching mechanism, thus its function is to make available two usb ports using only one on the computer.
1499968
A double, means two units. One for each ear. Perhaps calling them a "pair" might have been more helpful.
1598021
It means two PCS of any kind. Two desktops, two laptops or any combination thereof. Roland
801358
The cable must be connected to both the USB connection and the standard video/cable connection for the antenna to work....so I guess it is not "dual purpose"..it needs both connections.
1496653
They mean they will only fit SRW (Single Rear Wheel) Trucks only. On a dually they would only fit on the front.
1396612
I bought mine for the same purpose. Yes, you need two, and yes, one on each end.
1930697
It is to give you the option to have two different phones in one. You can even have service with two different companies at the same time. You can have the option to have two different phone numbers. Some people use the phone for work and for personal use.
2212031
I wouldn't go so far as to say there is a universal goal. Of course everyone wants to have the best equipment and be able to participate in "end game" activities. It just depends on what you want to spend your time doing while you play.
405259
I don't know what you mean. I bought this because it works for me for what its sole purpose is.