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The SR 221 pre-filter is a non-classified filter media designed to capture coarse and larger particles while extending the life of the SR 510 Particulate Filters. The pre-filter is placed in the pre-filter holder which attaches to the particulate filter.
Available in packs of 5 or 80.
OakTree Supply is a family owned and operated woodworking machinery, tool and supply store with a focus on quality brands you won't find in the big-box stores. Whether you are a hobbyist, a long-time pro, or even a business in need of industrial machinery, we can help!
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14110 Plank Street
Fort Wayne, IN 46818
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