Welcome to Defender Canada! 
Seachoice Fuse Block Item # 1471670
Description
Heavy duty base. Brass fuse clips and contacts with #8-32 screws. For SFE 20A or 3AG series fuse.
Specifications:
- Gang 4 Size: 2 3/4" x 2 3/4" x 5/8"
- Gang 6 Size: 4 1/4" x 2 3/4" x 5/8"