This replacement magnet holder is designed for use with Tunze Osmolator sensors, providing a secure and reliable mounting solution for aquarium auto top-off systems. It is suitable for upgrading units manufactured prior to 2008 that use rail mounting hardware, offering a straightforward way to modernise older setups.

The holder allows for stable attachment of the Osmolator sensor to aquarium glass up to 12 mm thick. Its compact design ensures a firm grip while maintaining a low profile inside or outside the tank, helping to keep sensor positioning accurate for consistent water level control.

Built for compatibility and ease of installation, this magnet holder is an ideal replacement part for maintaining the performance of your Osmolator system.

Key Features:

• Replacement magnet holder for Tunze Osmolator sensors
• Suitable for upgrading pre-2008 units with rail mounting hardware
• Provides secure attachment to aquarium glass
• Compatible with glass thickness up to 12 mm
• Compact and low-profile design
• Helps maintain accurate sensor positioning

This magnet holder offers a practical solution for replacing worn or outdated mounting components, helping to keep your auto top-off system functioning reliably and efficiently.

Specifications:

• Compatibility: Tunze Osmolator sensors
• Maximum Glass Thickness: 12 mm (1/2 in.)
• Dimensions: Ø 51 mm x 10.5 mm width

Aquacadabra acts as credit broker/intermediary and not as a lender.

Klarna's credit products are provided by Klarna Bank AB, which is authorised and regulated by the Swedish Financial Services Authority, with limited supervision by the Financial Conduct Authority. More information can be found here.

Newpay finance options are provided through Deko’s platform by NewDay. P.D. Aquatics Ltd, t/a Aquacadabra is an Introducer Appointed Representative of Pay4Later Ltd, t/a Deko, which is authorised and regulated by the Financial Conduct Authority (ref no 728646) and is a credit broker, not a lender. NewDay Ltd is authorised and regulated by the Financial Conduct Authority (ref no 690292) and is authorised by the Financial Conduct Authority under the Payment Services Regulations 2017 for the provision of payment services (ref no 555318). More information can be found by clicking the newpay option above, or in the Newpay FAQs.

We really want you to be happy with the product that you've received. If however, when the goods arrive they're not what you want, then no problem - we have a 60 day no quibble return guarantee. Just let us know that you're going to return the item(s) by contacting us(stating your Order Number) and complete the returns packing slip that will have been included with your delivery. This will help us to quickly identify the item that you have returned (unopened and unused) - and we'll put a refund through for you.