Hayward StarLite Hex Nut No. 10-24 With Washer for Race Rim Studs, SPX0540Z4A

Hayward SPX0540Z4A Hexagonal Nut with Washer For SP0540; SP0541; SP0542; SP0543 StarLite Series; #10-24

Restore security to your pool or spa heater with this OEM replacement lock-out kit, designed for use on Hayward Universal H-Series Low NOx heaters. The kit installs behind the control bezel to prevent unauthorized adjustment of temperature and settings, making it ideal for multi-use settings such as rentals, public pools, or shared equipment.

Key Features:

Covers the heater’s control bezel to restrict access to mode, temperature or function adjustments.

Designed specifically for Hayward Universal H-Series Low NOx heaters (ensure your model series matches).

Helps maintain operational reliability and compliance by preventing inadvertent or unauthorized tampering with controls.

Straightforward installation: remove bezel, fit lock-out module per kit instructions, re-install bezel and test functionality.

Used On

• DuraLite Series SP0560-0570 Light Parts
• Hayward Starlite Series SP0540, SP0541, SP0542, SP0543 Lights