An overflow box is a great way to keep the water level at a constant in your saltwater aquarium as well as increase the rate at which surface water, and the film and dust with it, is removed. CPR Aquatics are high quality, black acrylic and built in the USA. Install by using aquarium silicone. We suggest using a silicone color that matches the existing silicone in your tank.
Extra Small - up to 250 GPH
Small - up to 500 GPH
Medium - up to 900 GPH
Large - up to 1200 GPH
Extra Large - up to 1600 GPH
RSS05 - 6 3/8" L x 2 3/8" W x 3 5/8" H (Nano tank)
RSS07 - 5 1/4" L x 3 5/8" W x 5 1/4"H (Up to 60 gallon tank)
RSS12 - 7 1/4" L x 4" W x 5 1/4" H (Up to 120 gallon tank)
RSS18 - 12 1/2" L x 4" W x 5 1/4" H (Up to 200 gallon tank)
RSS24 - 18 5/8" x 4" W x 5 1/4" H (Up to 300 gallon tank)
When choosing an overflow we suggest using the largest overflow box that will fit your tank. It is impossible to oversize an overflow.
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