This genuine Fluidra open threaded collar is a precision-engineered locking ring designed to secure the multiport valve to the top outlet of the Astral Millennium sand filter. It threads onto the filter body, clamping the valve firmly in place and maintaining a reliable, pressure-resistant seal during all filtration and backwash cycles. Replacing a worn or damaged collar restores safe valve retention and prevents leaks at the valve-to-tank connection.<\/p>\n
This collar is a direct spare part for the Fluidra Astral Millennium Sand Filter range with a top-mounted valve outlet. Always cross-reference your filter model and existing collar diameter before ordering to confirm fitment \u2014 other Fluidra sand filter families use different collar variants (such as SKU 4404180102 for stainless steel models).<\/p>\n
As an OEM Fluidra part, this collar is manufactured to the exact thread pitch, diameter, and material specification of the original component. Generic substitutes may not engage the threads fully, risking valve blowout under working pressure. A genuine replacement guarantees the secure fit and longevity that the Millennium filter system was designed around.<\/p>\n
Shut off the pump and fully depressurise the filter before beginning. Remove the existing collar by unthreading it counter-clockwise, inspect the valve O-ring and seating face, then thread the new collar clockwise until firmly hand-tight. No special tools are required for the threaded engagement, though a strap wrench can assist final tightening. Always re-check for leaks after the first pressurised start-up.<\/p>","protected":false},"excerpt":{"rendered":"