{"product_id":"pentairwaterpoolandspainc_474368z","title":"Pentair Automatic Gas Shutoff Switch 140°F | MasterTemp HD 125 Pool \u0026 Spa Heater | 474368Z","description":"\u003ch3\u003eOEM Gas Shutoff Switch for the MasterTemp HD 125 Heater\u003c\/h3\u003e\n\n\u003cp\u003eThe Pentair 474368Z is the OEM replacement automatic gas shutoff switch for the MasterTemp HD 125 Pool and Spa Heater, rated at 140°F.\u003c\/p\u003e\n\n\u003cp style=\"background-color: #fff3cd; border: 2px solid #FFEAA7; padding: 15px; border-radius: 5px; margin: 15px 0; color: #856404;\"\u003e\n\u003cstrong\u003e⚠️ IMPORTANT: LICENSED PROFESSIONAL INSTALLATION REQUIRED\u003c\/strong\u003e\u003cbr\u003e\nGas and electrical heater components must be serviced by a licensed pool professional or qualified HVAC technician. Do not attempt to service gas or high-voltage components without proper certification.\n\u003c\/p\u003e\n\n\u003cp\u003eThe automatic gas shutoff switch is a safety-critical component in the MasterTemp HD 125 heater. When the heater reaches or exceeds its rated threshold temperature, this switch interrupts the gas supply to prevent unsafe operating conditions. A failed or tripped shutoff switch will prevent the heater from firing or cause it to shut down unexpectedly. Replace with the OEM part to ensure the switch operates within the heater's designed safety parameters.\u003c\/p\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; margin: 20px 0; border: 1px solid #ccc;\"\u003e\n\u003ctr style=\"background-color: #f8f9fa;\"\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003e\u003cstrong\u003ePentair Part Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003e474368Z\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003e\u003cstrong\u003eTemperature Rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003e140°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f8f9fa;\"\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003e\u003cstrong\u003eFits\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003eMasterTemp HD 125 Pool and Spa Heater\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003e\u003cstrong\u003eQuantity Included\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003ePro Tip\u003c\/h3\u003e\n\u003cp\u003eBefore ordering, confirm the part number printed on your existing switch matches 474368Z. The MasterTemp line includes multiple shutoff switches rated at different temperatures — ordering the incorrect temperature-rated switch will cause the heater to shut down prematurely or fail to protect against overtemperature conditions. Match the number on the original component, not just the heater model.\u003c\/p\u003e\n\n\u003c!-- wft:processed:manual:2026-04-06 --\u003e","brand":"Pentair","offers":[{"title":"Default Title","offer_id":53971931791635,"sku":"474368Z","price":38.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0920\/0687\/5411\/files\/pentair-automatic-gas-shutoff-switch-140-f-mastertemp-hd-125-pool-spa-heater-474368z.webp?v=1780513776","url":"https:\/\/poolaroo.com\/products\/pentairwaterpoolandspainc_474368z","provider":"Poolaroo","version":"1.0","type":"link"}