HEYCO STRAIN RELIEF 1/2" NPT, 3 Holes x 5.6mm
HEYCO STRAIN RELIEF WITH METAL LOCKNUT 3/4", NPT, 5 Holes x 5.5mm
HEYCO STRAIN RELIEF 1-1/4", NPT,13 Holes x 5.5mm (.303")
HEYCO STRAIN RELIEF 2", NPT, 19 Holes x 7.7mm