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Durable and Weather-Resistant: The high-quality copper construction ensures lasting performance in all environments
It helps protect the liner edge while creating a clean transition between the fitting and liner surface
This replacement part is tailored for professional pool service and pool equipment repair workflows
It controls water flow through the heater assembly
Replacing the valve ball restores proper control and sealing
Pentair AGS Switch Service Part, 140F, for Heater | 42002-0025S Pool Automation Durable and Weather-Resistant: The high-qualityWhat This Part Is Used For Pentair 42002 0025S AGS Switch Service Part 140F is a replacement automatic gas shutoff safety switch for compatible Pentair heaters. It monitors temperature conditions and supports safety shutdown when required. Why This Part Matters A failed AGS switch can prevent the heater from operating or can compromise safety protections. Replacing it restores proper safety control and reliable heater function. Correct safety
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