Spraypump suction must be equipped with a new filter, suctionhose is replaced with new one.
喷漆泵的吸口一定要加装全新的过滤网，吸口软管也要替换成新的。
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These vacuum pumps come standard with many important features that others offer as options - quality inlet filter, premium exhaust silencers, suctionhose and industrial strength channel iron frame.