{"product_id":"rule-25sa-500gph-electronic-sensing-bilge-pump-12v-automatic-submersible-marine-pump-with-check-valve-and-thermal-protection","title":"Rule 25SA 500GPH Electronic Sensing Bilge Pump - 12V, Automatic Submersible Marine Pump with Check Valve and Thermal Protection","description":"\u003cb\u003e500GPH Electronic Sensing Bilge Pump - 12V\u003c\/b\u003e\u003cbr\u003e\u003cbr\u003eIn the next generation sensing bilge pumps, the 500GPH S series pump works  on the principle of impeller resistance. The pump will turn on every 2-1\/2 minutes for about one second to sense for water. If water is present, the pump will sense resistance and continue to run until all water is removed. After that, it will resume checking for water every 2-1\/2 minutes. \u003cbr\u003e\u003cbr\u003eWater is kept in check between 1\/8\" and 3\/8\"!!! Great idea when power conservation is needed and as an added benefit, no float switch is needed!\u003cbr\u003e\u003cbr\u003e\u003cb\u003eAll that plus the added benefits of our standard bilge pump:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eCheck valve included with hidden air vent to prevent airlocking\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eTrue electromagnetic suppression (EMC)\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eA built-in thermal cell that protects the pump and the vessel when things get too hot\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003eThese are the smallest automatic pumps available on the market!!!\u003cbr\u003e\u003cbr\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eCompletely automatic with manual override - No Float Switch Needed!\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSubmersible and Ignition Protected\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eHigh efficiency, low amp motor\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eStainless-steel shaft\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eIncludes backflow preventer\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cimg src=\"https:\/\/productimageserver.com\/prop65\/6pt.png\" alt=\"Warning\"\u003e\u003cstrong\u003eWARNING:\u003c\/strong\u003e This product can expose you to chemicals including 1,3-Butadiene which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to \u003ca href=\"http:\/\/P65Warnings.ca.gov\"\u003eP65Warnings.ca.gov\u003c\/a\u003e.\u003c\/p\u003e \u003c!--- cis2:m2lsl5xp ---\u003e\n\u003cp\u003eThe Rule 25SA 500GPH Electronic Sensing Bilge Pump is an innovative, compact solution designed for reliable water removal in marine environments. Operating on a 12-volt power supply, this pump employs advanced impeller resistance technology to detect water presence without the need for a float switch. It automatically activates every 2-1\/2 minutes for a brief check, and if water is detected, it continues pumping until the bilge is dry, then resumes sensing. This intelligent design ensures efficient operation while conserving power, making it ideal for boaters seeking a dependable, low-maintenance bilge pump.\u003c\/p\u003e\u003cp\u003eConstructed with a stainless-steel shaft and a high-efficiency, low-amp motor, the Rule 25SA delivers consistent performance under demanding conditions. It is fully submersible and ignition protected, providing peace of mind in marine applications. The pump includes a check valve with a hidden air vent to prevent airlocking, ensuring smooth operation and ease of installation. Additionally, a built-in thermal cell safeguards the pump and vessel from overheating, extending the lifespan of the device. Its compact size makes it one of the smallest automatic bilge pumps available, ideal for spaces where space is limited.\u003c\/p\u003e\u003cp\u003eThe Rule 25SA features a manually override option for added control, and it comes with a backflow preventer to ensure water does not return into the bilge. Its efficient design and robust features make it suitable for various boat sizes and settings, providing reliable, maintenance-free operation. Note: This product contains chemicals such as 1,3-Butadiene, which the State of California recognizes as a potential risk; please see P65Warnings.ca.gov for detailed information.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\u003cli\u003eCompletely automatic operation with manual override—no float switch needed\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eSubmersible and ignition protected for marine safety\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eHigh efficiency, low amp motor for energy savings\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eStainless-steel shaft for durability and corrosion resistance\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eIncludes check valve with hidden air vent to prevent airlocking\u003c\/li\u003e\u003c\/ul\u003e\u003cstyle\u003etable.productattributes, .productattributes td { border-bottom: 1px solid #ddd; border-collapse: collapse; padding: 2px; text-align: left; }\u003c\/style\u003e\n\u003ctable class=\"productattributes\"\u003e\n\u003cthead\u003e\u003ctr\u003e\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\u003ctd\u003eTruck Freight: No\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eOversized: No\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cbr\u003e","brand":"Rule","offers":[{"title":"Default Title","offer_id":44253833658457,"sku":"64159","price":109.97,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0623\/1818\/2489\/files\/64159XL.jpg?v=1785359237","url":"https:\/\/www.marinepartsonly.com\/products\/rule-25sa-500gph-electronic-sensing-bilge-pump-12v-automatic-submersible-marine-pump-with-check-valve-and-thermal-protection","provider":"Marine Parts Only","version":"1.0","type":"link"}