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Cast iron body. Installed on fill line to compensate for adjustment in grade level due to ground movement or tank settlement.
1/2" x 1 1/2" x 1 1/4", 2" x 2" x 1 1/4", 3" x 3" x 1 1/4", 4" x 4" x 1 1/4"
Made in USA, Heavy Duty
Extension Nipple