Comes with cover & weirs. It is easy to install. It accepts 2",3",4" and 6" pipe which can be install at various heights.

Manufactured with high densoty polyethylene which won't shatter. It is watertight and airtight. Designed with structural ribs that prevents frost from adhering to the riser in frost prone areas, this is an unique feature to this product brand.

Comes with cover & weirs. This is the most versatile box on the market today. It accepts 2",3",4" and corrugated pipe.

Has a heavy duty, structural rib reinforcement for extra strength and this prevents frost from adhering to the riser in frost prone areas.