RSS07 Small Overflow Box Lid

These overflow box lids from CPR Aquatics fit the retrofit overflow boxes we carry:CPR Retrofit Overflow BoxCPR Retrofit Overflow Box with BackingMade of high quality, black acrylic and built in the USA. Rails of lid, keep lids in place.A retrofit overflow box is a great way to keep the water level at a constant in your saltwater aquarium. CPR Aquatics are high quality, black acrylic and built in the USA.