Spencer Strainer Systems manufactures a permanent, sealed, self-cleaning filter / strainer, for removing particles from liquid flows. This durable, Type 316 stainless steel unit eliminates product waste, emissions, labor costs, and interruptions common to other types of filters. Industrial, sanitary, and 3A grades are available. Peanut and nut butters, toothpaste, sauces, and juice are just a few of our many applications. Made in the USA. Test Lease program is available.