5 x 2.5 Filter Overview Video Transcript

Hey everyone, Aquaman here with FilterDoctor.com. Today’s video is a general overview of the 5 x 2.5 industry standard size filter category. What I have here in front of me are a number of filter housings and some filter cartridges. Now, obviously these are approximately 5 inches long by 2 ½ inches in diameter. And these filters fit into industry standard size filter housings that take 5 x 2.5 inch cartridges. And there are a number of them; this is just a small sampling of the types of filter housings that are available, but this will give you a pretty good idea of what’s out there. First of all, of course, you have the opaque housings. Then you have the clear housings, the significant advantage here being that for heavy sediment applications you can visually inspect your filter cartridge to see if it is loaded with sediment. Now in most cases, you’re going to be able to tell when you go to draw water from the filter tap and discover that the pressure is low and that the flow rate is poor; which indicates that the filter cartridge is clogged and needs to be replaced whether you can see it or not. That is something that some people like to have. The other major difference here between these housings is the size of the inlet and outlet. Now these five inch housings are typically only found in two sizes; either the ¼ inch with the ¼ inch female pipe thread inlet/outlet, or the 3/8 female pipe thread inlet/outlet size. And then the other difference between these housings; you’ll notice that two of these have this red pressure release button on top. This is a convenience for when you’re changing filter cartridges. You need to be able to release the pressure from the filter housing one way or another. With a built in pressure release valve, you simply turn off the water supply going to the housing then depress the button, you’ll get a little spurt of pressure and a little bit of water, then you can easily open up the filter housing to change your filter cartridge. If you don’t have that pressure release valve, then you simply need to go to your kitchen tap or to the nearest tap and turn it on and let the pressure release there. This is just convenient; you can do it all right there by the filter with the tool in your hand when you’re ready to change your cartridges. Now, speaking of cartridges, there are a variety of cartridges available. There is a vast selection of industry standard size cartridges that fit inside of these housings; and as I indicated earlier, there are all approximately 5inches in length and 2 ½ inches in diameter, give or take a quarter to three eighths of an inch they’ll fit in these housings. And they’re available in all of the typical styles. You have your carbon filters; you have your pleated polyester, pleated cellulose for sediment applications, and granular activated carbon. Admittedly the selection is not quite as vast as the 10 by 2 ½ inch size, but there is still a vast selection and something for your application. Now, speaking of applications, where are these used? Let me make it clear, they are never to be used in whole house applications. The filter cartridge is simply too small, does not provide enough surface area to provide the appropriate flow to the house. A cartridge of this size on a whole house system is going to create massive pressure loss and flow restriction, it’s not going to allow enough water through to be comfortable for you at your tap or your shower or your various applications in your home. Now, perhaps in the rare instance, with an elderly person living alone that’s not using very much water at all, perhaps it could be used in that application; but really let’s be serious and go to the 10 by 2 ½ as the minimum size for a whole house application. Where are they used then? They’re used in RV’s, they’re used in boats, and they’re used in household taps where the form factor is important. If you need the small form factor because you have a cramped space underneath your kitchen sink or perhaps underneath your bathroom sink; wherever you’re putting the filter , if you need that small form factor, well this is as small as it gets unless you’re going to a faucet mounted system, of course. So, these are the 5 inch by 2 ½ inch standard filter cartridges and filter housings. Perfect for small applications; RV’s, boats, and cramped quarters. I’m your host Aquaman with FilterDoctor.com. Thanks for watching. 

See the 5 x 2.5 Filters here.