Zodiac M4 x 20 mm module cover fixing screw pack of 4 – R0743000

Zodiac M4 x 20 mm module cover fixing screw pack of 4 R0743000

The Zodiac M4 x 20 mm module cover fixing screw pack of 4 R0743000 is the original screw set used to secure the electronic module cover inside Zodiac Tri and Hydroxinator control units. With the correct M4 x 20 mm dimensions and head design, these screws ensure that the module cover is firmly fixed, protecting the internal electronics against vibration, dust and splashes.

Main features of the Zodiac M4 x 20 mm screw set

• Original Zodiac fixing screws for the electronic module cover in compatible control units.
• M4 x 20 mm size matched exactly to the factory mounting points.
• Pack of four screws for complete replacement of the original hardware.
• Designed for use in warm, humid pool technical rooms.

Compatibility and typical applications

The R0743000 screw set is used wherever the exploded view identifies M4 x 20 mm screws as “tornillo M4 x 20 mm de fijación de la tapa del módulo”. These screws hold the internal module cover in place over the electronic boards, helping to shield sensitive components.

• Suitable for Zodiac Tri salt chlorinators that specify R0743000 for the module cover.
• Used on Tri Expert and Tri Expert LS control units with the same internal cover design.
• Also found on Hydroxinator and Hydroxinator MagnaPool models using the Tri style housing.

Always verify in the spare parts diagram for your model that R0743000 is listed as the module cover fixing screw before ordering.

When to replace the module cover screws

Screws can be damaged, corroded or lost during service work inside the control box. Replacing them with the original M4 x 20 mm hardware restores secure fixation of the module cover.

• Replace any screws that are rusty, bent or stripped and no longer tighten correctly.
• Fit new screws when the module cover has been removed during electronics replacement or inspection.
• Use this pack to restore missing screws so all mounting points are correctly used.

Installation guidelines

Installing the Zodiac M4 x 20 mm module cover fixing screw pack of 4 R0743000 is straightforward and should always be done with the control unit disconnected from the mains supply.

• Disconnect the chlorinator from the mains before opening the housing or handling internal parts.
• Position the module cover correctly over the electronic module, aligning all screw holes.
• Insert each M4 x 20 mm screw by hand first to engage the thread without cross threading.
• Tighten the screws evenly until the cover is firmly seated, without over tightening or deforming the plastic.
• Check that the cover is stable and that no components touch the screws or housing unintentionally.

With the original R0743000 screw set installed, the module cover remains securely fixed, helping to protect the internal electronics and maintain a neat, professional finish inside the Zodiac control unit.