EPA Establishment number: 99027-NY-1 Used in the APCO-SI, APCO-DI, APCO-ER or APCO-MAG 15". This bulb has a duct mount, it replaces the top lamp. 14" Long Also Known as: TUVL-115 , TUVL115 , TUVL 115 , TUVL-100-E , TUVL-100E , TUVL100E TUVL-115 , TUVL115 , TUVL 115 , TUVL-100-E , TUVL-100E , TUVL100E , TUV-APCO-ER , TUV-APCO-DER , TUV-APCO-ER2 , TUV-APCO-DER2 , TUV-APCO-SI , TUV-APCO-DI , TUV-APCO-SI2 , TUV-APCO-DI2