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Overflow Boxes: CPR Overflow Boxes


Read the CPR Aquatic How To Choose an Overflow Box article (pdf format in a new window) for advice on buying the correct size CPR Aquatic Overflow Box.

Visit the Filtration Overview Page for recommended equipment for reef, saltwater fish only and freshwater tanks, and for some basic aquarium filtration theory.
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CPR Aquatic CS100 Deluxe Siphon Overflow Box w/ Lid & Siphon Pump CPR Aquatic CS100 Deluxe Siphon Overflow Box w/ Lid & Siphon Pump

Product Code: RCPR04196
The CPR Aquatic CS100 Overflow Box has a maximum flow rate of 800 gph. This version DOES include the lid and the Siphon Pump. Outflow size: 1" bulkhead.

Our Price: $253.49
Sale Price (price includes free shipping!) $174.99
You save $78.50!
In Stock
CPR Aquatic CS150 Deluxe Siphon Overflow Box w/ Lid & Siphon Pump CPR Aquatic CS150 Deluxe Siphon Overflow Box w/ Lid & Siphon Pump

Product Code: RCPR04096
The CPR Aquatic CS150 Overflow Box has a maximum flow rate of 1,600 gph. This version DOES include the lid and the Siphon Pump. Outflow size: 1-1/2" bulkhead.

Our Price: $282.31
Sale Price (price includes free shipping!) $229.99
You save $52.32!
In Stock
CPR Aquatic CS150 Siphon Overflow Box CPR Aquatic CS150 Siphon Overflow Box

Product Code: RCPR04081
The CPR Aquatic CS150 Overflow Box has a maximum flow rate of 1,600 gph. This version does NOT include the lid or a siphon pump. Outflow size: 1-1/2" bulkhead.

Our Price (price includes free shipping!) $211.39
Sale Price: $174.99
You save $36.40!
In Stock
CPR Aquatic CS150 Siphon Overflow Box, Lid & AquaLifter Pump Package CPR Aquatic CS150 Siphon Overflow Box, Lid & AquaLifter Pump Package

Product Code: RCPR04081-Bundle
This package includes the CPR Aquatic CS150 Siphon Overflow Box, CPR Aquatic Lid for CS150 Overflow, and the Koller Aqua Lift Pump.

Our Price (price includes free shipping!) $269.99
Sale Price: $229.99
You save $40.00!
In Stock
CPR Aquatic CS90 Siphon Overflow Box CPR Aquatic CS90 Siphon Overflow Box

Product Code: RCPR04981
The CPR Aquatic CS90 Overflow Box has a maximum flow rate of 600 gph. This version does NOT include the lid or the Pump. Outflow size: 1" bulkhead.

Our Price (price includes free shipping!) $159.99
Sale Price: $99.99
You save $60.00!
In Stock
CPR Aquatic Lid for CS100 Siphon Overflow CPR Aquatic Lid for CS100 & CS102 Siphon Overflow

Product Code: RCPR04113
The CPR Aquatic Lid for CS100 Siphon Overflow & CS102 Siphon Oveflow.

Our Price: $11.99
In Stock
CPR Aquatic Lid for CS150 CS202 Siphon Overflow CPR Aquatic Lid for CS150 & CS202 Siphon Overflow

Product Code: RCPR04114
The CPR Aquatic Lid for CS150 Siphon Overflow & CS202 Siphon Oveflow.

Our Price: $12.59
In Stock
CPR Aquatic Lid for CS50 Siphon Overflow CPR Aquatic Lid for CS50 Siphon Overflow

Product Code: RCPR04111
The CPR Aquatic Lid for the CS50 Siphon Overflow.

Our Price: $9.49
In Stock