This document discusses two pre-filters of different sizes. The first pre-filter measures 610 mm by 305 mm by 50 mm. The second pre-filter is larger, measuring 610 mm by 610 mm by 50 mm. Both pre-filters are described only by their measurements.
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HVAC Pre-Filter Specifications
This document discusses two pre-filters of different sizes. The first pre-filter measures 610 mm by 305 mm by 50 mm. The second pre-filter is larger, measuring 610 mm by 610 mm by 50 mm. Both pre-filters are described only by their measurements.