Vacuum Suction Cup Suspension SlidesSLSA-3 Series Vacuum Cup Slide Suspension Assemblies Part No. Connection Thread Size Travel in. (mm) Crossarm Size in (mm) A in. (mm) B in. (mm) C in. (mm) D in. (mm) SLSA-350-175 1/4″ NPT male 2.00 (51) 1.75 (44) 2.00 (51) 2.50 (64) 5.24 (133) 1.56 (40)