Astral Products-fluidra 740r1700120 O-ring Aster Filter Lid

Product Description

The ASTRAL PRODUCTS-FLUIDRA 740r1700120 is a replacement O-ring designed to seal the lid on Astral Aster series pool filters. This O-ring maintains a watertight connection between the filter lid and the tank body, preventing leaks during filtration and backwash cycles. Pool service technicians install this part as a routine maintenance item whenever the filter lid seal shows wear, cracking, or permanent deformation. Keeping the lid O-ring in good condition is essential for maintaining system pressure and preventing water loss at the filter head.

This O-ring is used on Astral Aster series sand or media filters found in residential and light commercial pool installations. It is a direct OEM-style replacement intended for filter lid servicing, typically performed during seasonal startup, after extended storage, or when lid leaks are observed at operating pressure. Pool technicians working on Astral filtration equipment will encounter this seal during standard lid removal for media inspection or media replacement.

Key Features

• OEM-style replacement O-ring for Astral Aster filter lid applications
• Provides a watertight seal between the filter lid and tank body
• Helps maintain system operating pressure during filtration and backwash cycles
• Direct replacement reduces downtime during routine filter servicing

Compatibility

Designed as an OEM-style replacement O-ring for the Astral Aster series filter lid.

Installation Notes

Installation should be performed by a qualified pool service technician. Before servicing, shut off the circulation pump and release system pressure through the air relief valve on the filter. Inspect the O-ring groove for debris or damage before seating the new O-ring, and apply a silicone-based lubricant to ensure proper seating and prevent pinching. Do not use petroleum-based lubricants, as they can degrade the O-ring material.

Technical Specifications

• Part Type: O-Ring
• Application: Aster Filter Lid

Standard Information

• Brand: ASTRAL PRODUCTS-FLUIDRA
• Manufacturer Part Number: 740r1700120