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Apollo Spas
Aluminum back for extra stiffness and scrubbing power
or mineral deposits — contamination in the groove is a leading cause of premature seal failure
Length 18 3/16" Outer Diameter 8 11/16" Top Inner Diameter 4 3/16" Bottom Inner Diameter 4 3/16" Material 4 oz
The manifold distributes gas to the burner assembly and supports proper combustion within the heater's water system
Pentair High Flow Manual Air Relief Valve | 2000 Series, 4000 Series & FNS Plus Filters | 98209803Z Clarifiers Apollo SpasThe Pentair High Flow Manual Air Relief Valve (98209803Z) is the OEM replacement air relief valve assembly for Pentair 2000 Series, 4000 Series, and FNS Plus D. E. filters. What It Does The manual air relief valve allows trapped air to be purged from the filter tank before and after servicing, maintaining proper water flow and preventing air locks within the filtration system. A failed or leaking air relief valve can compromise filter performance and
