Products BaseRectangular Base Back Base Rail Fitting Rectangular 45° 556-21550-00 Item Number: 556-21550-00 Base Rail Fitting Rectangular 45° 7/8" You May Also Be Interested In Light Antenna Base 156-66230-C0 Base Rail Fitting Rectangular 45° 556-21551-00 Wire Clamp 956-09606-00 Handle 956-02265-00