Cross Over sub 4 1/2 IF box x 31/2 NVAM pin Bit SubCross Over sub (Bit Sub) is short length of reduced diameters with different thread connection such as REG,IF,EUE,HSM2,BGT2,NVAM etc.
Cross Over sub 7 5/8" Reg. Pin X 4 1/2" IF Box Length 3 ft
Bit Sub 7 5/8" Reg X 6 5/8" Reg Length 3 ft with float Valve recess in the 7 5/8" Reg connection side
Bit Sub 4 1/2" Reg X 4" IF (NC-46) Length 3 ft with float Valve recess in the 4 1/2" Reg connection side
