Jhe4576. I own a Genie SV125Q, 5 gallon wet/dry

Where did you buy this unit from? Go back there and ask if they have filters for yours. Otherwise look in the Yellow Pages for vacume cleaner repair shops. Sometimes they have all kinds of filters for all kinds of vacumes. You can try places like Wal Mart. What you want to look for are filters that will work with your unit. The foam filter you refer to is called a pre-filter. It traps the bigger particles so they won't damage your paper filter or clog it up especially if it's wet stuff you're picking up. You can remove that foam filter and gently wash it out in the sink with a mild dishwashing liquid and warm water. And even sometimes if you have time you can wash a paper filter out by hosing it out from the inside, with just a gently rinsing on the outside. Don't use any solvents on it just soap and water. And don't use high pressure either, as it will destroy the paper. I have cleaned my paper filters several times before I finally had to replace them. You can also look at places like Lowe's. They carry shop vacs and a whole assortment of attachments as well.