The line consists of two basic models: the GS basket strainer and the GD twin basket strainer. Both are available in threaded or flanged units, and come in a variety of sizes and body materials. And they're interchangeable with most standard competitive products of comparable material and size.

Guardian strainers are widely used for oil and water applications, as well as for removing impurities from gasoline, chemicals, sugar juice, molasses, tar, glue, and many other process fluids, like paint, ink, latex, pharmaceuticals and cosmetics.