Reliability Provin KT-DF-032 Aftermarket Replacement Part for the DuoFast KT-DF-032 O-Ring Kit This kit will fit the following nailers: DuoFast SureShot-1832 DuoFast SureShot-6532 DuoFast SureShot-W1832 Includes: All the o-rings in the tool. Instructions with a schematic of the tool. O-Rings are color coded to aid installation. Manufacturer: Reliability Provin Part Number: KT-DF-032 This is a brand new tool part and comes with manufacturers warranty.