Compatible with Spartan models:

STR-23
STR-47
STR-72
STF-23
STF-47
STF-72
SBBB-48
SBBB-58-SL
SBBB-60
SBBB-72
SSBB-48
SSBB-58-SL
SSBB-60
SSBB-72
SSBB-79-SL
SGBBB-48
SGBBB-58-SL
SGBBB-60
SGBBB-72
SGBBB-79-SL
SSGBB-48
SSGBB-58-SL
SSGBB-60
SSGBB-72
SSGBB-79-SL
SBC-27
SBC-50
SBC-65
SBC-95

Dimensions: 1-3/4"L