Sign In
Store
Membership
Events
Calendar
NFSA Seminars
Regions
About
Advocacy
NFSA Awards
Board, Councils & Committees
NFSA Staff
History of the NFSA
Training
Blog
Resources
All Resources
Chat EOD
Apply for a Grant
NFSA EOD Handbook
Inspection, Testing, and Maintenance
Side by Side Burn Demonstrations
Valve Trailer Demonstration and Training
Tax Reform Resources
Submit a Sprinkler Save
Membership
Events
Calendar
NFSA Seminars
Regions
About
Advocacy
NFSA Awards
Board, Councils & Committees
NFSA Staff
History of the NFSA
Training
Blog
Resources
All Resources
Chat EOD
Apply for a Grant
NFSA EOD Handbook
Inspection, Testing, and Maintenance
Side by Side Burn Demonstrations
Valve Trailer Demonstration and Training
Tax Reform Resources
Submit a Sprinkler Save
Sign In
Store
Product Advisory – UL (Underwriters Laboratories)
O-Ring Sprinklers
UL Warns of Counterfeit UL Mark on Fire Sprinklers (Release 20PN-01)