

Due to upcoming changes in EU import regulations from 1st July 2026, we have temporarily paused deliveries to EU countries.
We are working to restore this service as quickly as possible and thank you for your patience.
Bostitch Piston Ring for SL540 BT1855-E Staplers & Nailers
To make sure that the air pressure is kept inside the cylinder its vital that you have this ring. If you notice that you have an air leak in your tool it'll be time to replace the ring.
Please see below for all applicable models