Hayward VLX4004A – O-Ring Kit for VL Series Strainer & Filter

Product Overview

The Hayward VLX4004A is a complete O-ring replacement kit designed for the VL Series sand filters and strainer assemblies. It includes all necessary sealing rings to maintain optimal equipment performance and prevent leaks at critical connection points.

Key Features

• Includes all O-rings used on the strainer and filter in one convenient kit.
• OEM part designed specifically for VL Series sand filters and compatible strainer assemblies.
• Helps restore reliable sealing performance where original O-rings may have hardened, cracked or been lost.
• Simple maintenance part—ideal for servicing filters during annual pool maintenance or change of season.

Technical Specifications

• Part Number: VLX4004A
• Application: O-Ring sealing kit for VL Series sand filters and pump strainer housings
• Contains: Multiple O-rings (for strainer lid, clamp, filter tank, etc.)
• Fits: Hayward VL Series sand filters (for example model VL40T32) and compatible strainer assemblies

Applications & Compatibility

This kit is ideal when servicing or replacing the O-rings in VL Series filter tanks and matching strainer housings. After several seasons of chemical exposure, sunlight and equipment cycling, the original O-rings often lose elasticity and sealing function. Installing the VLX4004A kit restores the proper seal and helps avoid air intrusion or water leaks.

Installation Instructions

• Turn off the pool pump and relieve filter pressure.
• Remove the filter lid or clamp and old O-rings; clean sealing surfaces thoroughly.
• Select the correct O-rings from the kit and install them, ensuring proper seating in the grooves.
• Re-assemble the tank lid or clamp, restore power and monitor the system for any signs of leaks or air entering the suction side.

Troubleshooting

• Leak after replacement: Verify that the O-rings are seated flat, surfaces are cleaned and properly lubricated, and clamp or lid is evenly tightened.
• Air bubbles visible in system: Check that the lid O-ring is properly positioned and that the strainer housing is sealed.
• Hard to remove old O-rings: Use a non-metallic tool to avoid damaging grooves; clean thoroughly before installing new seals.

Maintenance Tip

Include the VLX4004A kit in your annual pool equipment service routine. Replacing worn seals when their performance begins to drop helps maintain optimal system reliability and prevents more costly repairs down the line.