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B1-IP4 11"x11" Lid with 4" hole in the middle for inspections.
11"x11" Lids are designed to fit Tuf-Tite 4 Hole Distribution Boxes and Tuf-Tite B1 11x11 Square Risers
Available In The Following Models
B1-RL: Regular Lid
B1-IP4: 4" Inspection Port Lid
B1-DG: Drain Grate (Black)
B1-DGG: Drain Grate (Green)
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