2，比1，容易清洗

所有跟帖： 

• thank you, 2 looks better than 1, but 2 is only 600 cfm. -windflower321- ♀ (0 bytes) () 10/13/2016 postreply 15:08:17

• 1要每年拆涡轮清洁，2不用，若省钱能清污油请用1 -夏荷仲梦- ♀ (0 bytes) () 10/13/2016 postreply 15:11:53

• it seems they are about the same price. I do not like to do the -windflower321- ♀ (0 bytes) () 10/13/2016 postreply 15:22:01