Hurlcon ECA Filter Valve to Tank O-Ring – Green (7201750057)

Genuine Hurlcon ECA Filter Valve to Tank O-Ring — part no. 7201750057. This green rubber O-ring seals the multiport valve to the tank body on Hurlcon ECA sand filters. A worn or cracked O-ring causes water to leak from the joint between the valve and the tank. Replacing this O-ring restores a watertight seal.

Compatibility

• Hurlcon ECA sand filter — valve to tank connection

Product Details

• Brand: Astral Pool (Hurlcon)
• Part number / SKU: 7201750057
• Barcode: 9343609002619
• Colour: green
• Material: rubber
• Genuine Astral Pool spare part
• Made in Australia

Frequently Asked Questions

How do I know if this O-ring needs replacing?

If water is leaking from the joint between the multiport valve and the top of the Hurlcon ECA filter tank, the valve to tank O-ring is the most likely cause. Turn off the pump and relieve system pressure, then remove the multiport valve and inspect the O-ring for cracks, flattening, or deformation. Replace if any damage is visible.

Why is this O-ring green?

The green colour is specific to the Hurlcon ECA filter valve to tank O-ring and helps identify it as the correct part for this application. Using the correct O-ring ensures a proper seal and compatibility with the ECA filter valve and tank mating surfaces.

Should I lubricate the O-ring when fitting it?

Yes — apply a small amount of silicone-based O-ring lubricant (not petroleum-based grease) to the O-ring before fitting. This helps the O-ring seat correctly, prevents pinching during assembly, and extends its service life.