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SR 221 Pre-Filter


In-Stock (Ships in 1 business day.)
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Price Guarantee:
At Acme Tools we pride ourselves on offering you the best selection of tools, equipment and supplies in the industry at guaranteed low prices. From time to time we are not always able to see what the competition is doing. Our product is priced as low as possible. However, our prices won't be beat. If you see the exact item currently advertised for less (including the competitor's shipping and handling charges, taxes or any other hidden charges) we should be able to match that price. We reserve the right to verify current and net prices in these situations. See terms and conditions below. In the event of finding a lower price, use our Contact Us form and include the following information in the Comments Section for verification: Your order number, date of purchase, product number of item as well as the competitor's website and price. We will review the information, issue credit (if applicable), and get back to you within two business days.

Terms and Conditions:
  • The seller must be an authorized retail dealer.
  • Product must be in stock and an identical item.
  • This policy does not apply to auction sites, closeouts, clearance sales, misprints, giveaways, special promotions or discount offers and may not be used in conjunction with any other Acme Tools offers or coupons.
  • This policy is only valid within 30 days after your purchase date.
  • Your refund will be issued in the same form as your original payment.
  • Heavy Equipment does not qualify.
$0 .49
$0 .32

SR 221 Pre-Filter

The SR 221 prefilter should always be used together with particulate filter, chemical cartridges and combined filters. The prefilter protects the main filter against premature clogging by larger particles, for example dirt and dust.

  • Non-classified filter designed to prolong the life of the P100 particulate filter
  • Mechanically woven Polyester
  • Frequently exchanging the prefilter will prolong the life of the P100 particulate filter by catching larger particles and preventing premature clogging
  • NIOSH approved non classified prefilter
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