Duda Diesel Polyester Felt (PESP1S) Filter Bag Size#1 7"x16" 5 Micron, 5 Pack

These filters have multiple uses besides filtering fuel. They are great filters for overflow pipes in aquariums. I use one in my aeroponics reservoir as a filter. I hang this from the inside of my tote and insert the pump intake into the filter bags. They work great for this. Aeroponic nozzles have very small orifices and are easy to clog. I recently cleaned mine after a year of use without any clogging. There was almost nothing inside the nozzle filters and what little there was was easily cleaned out. What little there was probably fell into the filter bag itself accidentally because 10 microns is very small considering a human hair is 40 microns thick. Highly recommended for aeroponics or even hydroponics. Cheap insurance against clogging.

I have a water cooling system with a huge tank. I needed a 2 foot long filter to capture the alluvial particles. Since I was on a strict budget, I bought two of these, cut the bottom of one and pushed the second one partly through the hole. So for it has worked out fantastically! They are exceptionally sturdy yet supple enough to form inside the tank. I'll be using them again soon...!

Works perfectly with Phosphate Rx, which I'm sure most people are buying this to use with. Keep in mind, though, that the top is kept round with metal, not plastic. I took out the metal bracing for the top, since I didn't want that anywhere near my reef tank.

I do not use this for its intended purpose of filtering oils or liquids. I use it to trap fine dust in a dust collection system. It could also be used at Halloween if somebody wants to be the Pope! ;) I honestly do not see how they could make something so well made for this price.... and right here in the USA as well. Good product!

I cut them down in two for a secondary oil polisher filter I have. After my initial ( 1 mic.) centrifuge run to clean old oil for fuel in my diesel it passes through this 1/2 mic stuff. It seems to really get the finer stuff out which,otherwise,would silt up a normal 10 micron fuel filter on my rig. Like everyone cautions-filtration,filtration and then additional filtration!

This water filter bag works fine. My new well was spitting out a lot of silty water so I bought this bag. It cleaned up the water fine. The well water eventually cleared up so I don't need the bag anymore. The only downside that I can see is the the bag gets dis-colored from all the trapped, embedded particles. So it looks kind of funky, but I let it air out between uses and it still worked fine.

Great price, great value. I use these in my 120 gallon saltwater aquarium to filter the water in the sump before it hits the skimmer what a difference these make, being such a low micron, you must change every 2 to 3 days, they will clog up, wash in machine with bleach then run a short cycle with distilled vinegar, let air drive, I bought 5 to always have one ready, think I need 5 more

While the filtering material is very effective the ring that supports the top of the bag will RUST! A big no-no. The manufacturer would have been a lot smarter if some form of plastic was used as the insert instead of the metal. Big problem, considering that these are supposed to filter things out and not add to the water or other liquid being filtered.