{"product_id":"42-105601-20-rheem-ruud-spsp-pressure-switch-45wc","title":"42-105601-20 Rheem-Ruud SPSP PRESSURE SWITCH -.45wc","description":"\u003ch1\u003e42-105601-20 Rheem-Ruud SPSP PRESSURE SWITCH -.45wc \u003c\/h1\u003e\n\u003cp\u003e\u003cstrong\u003eReplaces: 42-24335-20\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eKeep your furnace or water heater running safely and reliably with the genuine Rheem‑Ruud SPSP pressure switch, part number \u003cstrong\u003e42-105601-20\u003c\/strong\u003e. Designed for precise low‑vacuum sensing, this OEM pressure switch monitors draft and combustion air flow and trips reliably at \u003cstrong\u003e-0.45 inches water column (in. WC)\u003c\/strong\u003e — the exact performance your Rheem\/Ruud appliance expects.\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003ch4\u003eProduct highlights\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003ePart Number:\u003c\/strong\u003e 42-105601-20\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eBrand:\u003c\/strong\u003e Rheem \/ Ruud (OEM)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eType:\u003c\/strong\u003e Single‑pole single‑throw (SPSP) pressure switch\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eTrip Setting:\u003c\/strong\u003e \u003cstrong\u003e-0.45 in. WC\u003c\/strong\u003e (factory calibrated)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eApplication:\u003c\/strong\u003e Draft\/pressure sensing for gas furnaces, water heaters, and packaged heating appliances\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eMounting:\u003c\/strong\u003e Compact chassis with standard mounting holes for direct replacement\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eTerminals:\u003c\/strong\u003e Quick‑connect spade terminals for fast wiring\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eInlet:\u003c\/strong\u003e Standard vacuum barb for 1\/8\" ID tubing\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003ch4\u003eWhy choose this part\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eExact OEM fit\u003c\/strong\u003e — guaranteed to match factory specifications for Rheem and Ruud models that list this switch, reducing troubleshooting time and fitment issues.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eReliable safety function\u003c\/strong\u003e — accurate low‑vacuum trip ensures proper venting and safe burner operation.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eQuick install\u003c\/strong\u003e — ready for drop‑in replacement using existing tubing and spade connectors.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eDurable construction\u003c\/strong\u003e — designed for long service life in typical residential HVAC environments.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003ch4\u003eTypical uses and compatibility\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eReplacement pressure switch for Rheem and Ruud gas furnaces, gas-fired water heaters, and certain packaged HVAC units that require a -0.45 in. WC trip point.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eIdeal for service calls, preventative maintenance kits, and OEM repair jobs where restoring factory performance is critical.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003ch4\u003eInstallation notes (technician friendly)\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eAlways shut off power and gas before servicing combustion controls.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eVerify tubing is clean, flexible, and free of kinks; replace aged vacuum tubing to ensure accurate sensing.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eConfirm spade terminal sizing and torque; ensure solid grounding of the appliance.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003ePerform a post‑service functional check: verify the switch opens\/closes at the correct vacuum while observing safe combustion and venting behavior.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003ch4\u003eWhat’s included\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eOne (1) genuine Rheem‑Ruud pressure switch, \u003cstrong\u003e42-105601-20\u003c\/strong\u003e. Vacuum tubing and connectors not included unless specified.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003ch4\u003eWarranty \u0026amp; quality\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eOEM part backed by Rheem\/Ruud quality standards. Check vendor page for warranty details and return policy.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Quinn","offers":[{"title":"Default Title","offer_id":42574904590402,"sku":null,"price":19.78,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1071\/8320\/files\/Screenshot2025-11-02212432.png?v=1762143911","url":"https:\/\/hvacpartstore.com\/products\/42-105601-20-rheem-ruud-spsp-pressure-switch-45wc","provider":"HVACpartstore","version":"1.0","type":"link"}