GP's In-house made universal distribution block. 

Red base, Clear Cover 

Fits 2/0, 1/0, 4, 8 awg gauge wiring 

• MADE IN-HOUSE AT GP IN THE USA
• Fits all lugs with 3/8ths hole
• 6061 Aluminum pad.
• All 6061 Aluminum and Stainless steel hardware.
• Quick and easy access with stainless steel thumb screws