Made to help extend the life of your main filter. The pre-filter mats should be replaced about once a month if welding approximately 40 hours a week.
Made of 100% polyester, the Kemper 1090033 Pre-Filter Mats available from WeldingMart install quickly and easily. These products are designed as replacement pre-filter mats for several of Kemper brand fume extractors. Sold in economical sets of 10, they boast high efficiency and high collection capacity. Each pre-filter mat measures 605mm by 17mm by 605mm.
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