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Adjustable Screw-Top Valve Boxes

Adjustable screw-tops come in two sizes and are made completely of cast iron. Adjusting the grade is a simple matter of turning the top portion clock-wise or counter clock-wise to add height or to shorten the box. A lid comes standard and is sold as complete units only.
Item Number / Description
133 Adjustable Screw-Top 18"-24"
Adjustable Screw-Top 24"-36"

Item #133-134