{"product_id":"pentair_42002-0029z","title":"Pentair Switch Membrane | Max-E-Therm Pool Heater | 42002-0029Z","description":"\u003cp\u003eThe Pentair Switch Membrane (42002-0029Z) is the OEM replacement switch membrane for the Sta-Rite Max-E-Therm pool heater control panel.\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\u003cstrong\u003e⚠️ IMPORTANT: HEATER COMPONENT — PROFESSIONAL SERVICE REQUIRED\u003c\/strong\u003e\u003cbr\u003eGas 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.\u003c\/p\u003e\n\n\u003cp\u003eThe switch membrane is the tactile overlay bonded to the heater's control panel face, translating button presses to the underlying control board. When the membrane deteriorates — through UV exposure, chemical contact, or general wear — buttons may become unresponsive or register false inputs, disrupting heater operation. Replacing the membrane restores reliable control input without requiring full control board replacement.\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;\"\u003e42002-0029Z\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003e\u003cstrong\u003ePart Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ccc; padding: 10px;\"\u003eSwitch Membrane\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003ePoolaroo Pro Tip\u003c\/h3\u003e\n\u003cp\u003eMatch the part number printed on your existing membrane or referenced in your heater's service manual before placing your order.\u003c\/p\u003e\n\n\u003c!-- wft:processed:manual:2026-05-01 --\u003e","brand":"Pentair","offers":[{"title":"Default Title","offer_id":53912383783187,"sku":"42002-0029Z","price":140.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0920\/0687\/5411\/files\/PEN420020029Z_0.png?v=1772793806","url":"https:\/\/poolaroo.com\/products\/pentair_42002-0029z","provider":"Poolaroo","version":"1.0","type":"link"}