Perfect! By Amanda on 1/29/13Amanda would recommend this product to a friendThese lids fit great on the overflow boxes offered by BRS. No possible way of sliding off. Also keep algae from growing in the overflow because everything is black acrylic.
Perfect Fit By John W. on 1/1/13John W. would recommend this product to a friendI purchased a lid with the 2400 overflow box. Everything fits perfect. The lids are built so they won't move or slide off the overflow. My overflow is now snail-proof.