Q: Should I use synthetic or cellulose filter media?
A: While cellulose is appropriate for some applications, synthetic media typically offers the lower differential pressure, higher temperature resistance, and longer shelf life. Synthetic filters can also be used with a greater variety of fluids and are more chemically stable. Cellulose elements are usually less expensive, but will probably have to be changed out more often.

Q: What is Hydrolysis?
A: A major cause of failure of filter media is through a chemical reaction known as Hydrolysis. This is defined as a chemical process of decomposition that involves splitting of molecular bonds and the addition of elements of water. Hydrolysis only becomes active in the presence of elevated temperature, moisture and chemistry (Acidic or Alkaline)

Q: What is a Filter?
A: A Filter can be described as a device or material, which separates one entity from another. This process of separation in Industrial processes falls into four main categories
LIQUID from LIQUID separation
SOLID from LIQUID separation
SOLID from SOLID separation
SOLID from GAS separation

Q: What is a BETA value?
A: The Beta value is a separation degree of a filter element determined in the so-called Multi-pass test to ISO 4572. It is a non-dimensional number which can be calculated by dividing the number of particles (of a certain size) before the filter element by the number of particles after the filter element. E.g. you count 1000 particles bigger or equal 10 micron before the filter and only 5 particles bigger or equal 10 micron after the filter that brings to 1000/5 = 200. So we have a BETA value of 200 for 10 micron particles.
Which is stated ß(10) = 200

Q: Why do I need Dirt holding capacity?
A: Besides the Beta value, dirt holding capacity (DHC) is an important criterion in comparing the performance of filter elements. The DHC of a filter element can only be determined through a Multi-pass test. Usually this is referred to as the actual contamination retention. Some manufacturers give the specific DHC, expressed in [mg / cm_], where the filtration area must be known in order to be able to make a comparison. The higher the DHC, the longer the service life.

Q: What is a micron?
A: A micron is a thousandth of a millimeter or a millionth of a meter or .000039 of an inch. Micron is the unit of measure used to determinate the size of particles in a fluid which are filtered out by the filter.

Q: Where are you located?
A: Nashville, TN

Q: Do you have more than one location?
A: No, as of now our only location is in Nashville, TN.

Q: How do I find a cross to a part number?
A: Type your part number in our Filter Quick Find on the Home page. If you can’t find what you are looking for, call a customer service representative at Quality Filtration and they will be happy to help you.

Q: How do I place an order?
A: You can e-mail a PO to This e-mail address is being protected from spambots. You need JavaScript enabled to view it or fax it in to 615-833-6500.

Q: What types of products do you carry?
A: We carry replacement elements for Pall, Hydac, Schroeder, and some Parker.

Q: How do I start business with you?
A: Begin by calling and speaking with a sales or customer service representative. We will then get you a credit application and get you set up as a customer in no time.

Q: Do you take credit cards?
A: Yes we do!  Use our online ordering system or call us with your information.

Q: What kind of payment terms do you offer your customers?
A: All of our customers will be set up on Net 30 Day Terms.