New O-ring Maintenance Rebuild Kits For Bostitch F21PL F28WW F33PT Stick Nailer. Warranty does not cover shipping, installation, labor, towing, rentals, storage, legal fees, lost wages or any other incidental fees. This is Aftermarket Replacement Parts. Comes with 90 days warranty. It is Buyer's responsibility to make sure parts purchased here is the correct part. Buyer must confirm the fitment with the dealer or other reliance sources of their choice prior to making purchase. This step is crucial as it eliminates the hassle of shipping and returning incorrect parts. Your Vin (Vehicle Identification Number) can be found on a sticker off your driver side door frame or near the car engine. Please use the VIN to obtain the original part no from your local dealer and make sure it matches the part no listed here in the listing for proper fitment!