Check the listing for details. Optrel E3000 PAPR System Filter. Condition: New. Listed at 42.95 USD. Innovative HEPA class The filters blocks more than 99.8% of particulates for increased safety. Snaps into blower unit for quick and easy replacement.***Save on shipping by combining purchases of select MIG, TIG, or Plasma parts. However, you must pay for all items with one combined payment for this shipping discount. Separate payments for each item are not eligible for a shipping discount. Go to our store and see all the items we have for sale: http://stores.ebay.com/welders4lessIf you need any other hard to find welder parts that are not listed, send us an e-mail with a digital photo- we might have just what you need. Buy in confidence from HTP America, Inc., your total welding specialist since 1981, where for over 35 years all we have sold are quality welding supplies at affordable prices. Please send us a message if you have any questions on our items.4088.200