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Included in all systems: AquaScience 8% Crosslink Resin
What is the purpose of the Refillable Cartridge Retaining Block 4.5"?
It is used to secure a refillable cartridge in place.
What cartridge size is this retaining block designed for?
It is designed for 4.5-inch cartridge applications.
What systems is this part intended for?
The supplied product data says it is intended for AquaScience systems using 4.5-inch cartridges.
Does this product require a control box?
No, it does not require a control box.
Is this a refillable cartridge or a retaining block?
It is a retaining block for a refillable cartridge.
Can this help keep a cartridge aligned in the system?
Its stated purpose is to secure the cartridge in place.
Is this product sold as a simple item or with required options?
The supplied data lists it as a simple product with no required options.
The Refillable Cartridge Retaining Block 4.5" is designed to secure a refillable cartridge in place. It is intended for AquaScience systems using 4.5" cartridges.
| Manufacturer | Aqua Science |
|---|
The Refillable Cartridge Retaining Block 4.5" is installed to help secure a refillable cartridge in the system.

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