These o-rings are work with our Ansul-style streamlined metal blow off caps (item # 09982) for the fire suppression nozzles of R-102 automatic cooking hood extinguishing systems. These items are functionally equivalent to Ansul item # 439848. These O-rings are not for use with Ansul's older CB nozzles.
O-ring outer diameter: ~17.4 mm. Inner diameter: ~13.6 mm. O-ring thickness: ~1.9 mm
These O-rings are sold in packages of 5 and 25.