{"product_id":"frog-pac-540c-replacement-chlorine-cartridge-for-pool-frog-xl-pro-cycler","title":"FROG Pac 540C Replacement Chlorine Cartridge for Pool FROG XL Pro Cycler","description":"\u003ch1 class=\"font-semibold leading-tight text-pretty first:mt-1 mb-2 mt-4 [.has-inline-images_\u0026amp;]:clear-end text-lg lg:text-xl\" id=\"frog-pac-540c-replacement-chlorine-cartridge-for-p\"\u003eFROG Pac 540C Replacement Chlorine Cartridge\u003c\/h1\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:align-top\"\u003eThe FROG Pac 540C Replacement Chlorine Cartridge is a prefilled chlorine pac made for the Pool FROG XL Pro Cycler system. Designed for larger in-ground pool systems using FROG mineral technology, this drop-in cartridge helps maintain clean, clear, sanitized pool water without the daily measuring, pouring, or handling of loose chlorine tablets.\u003c\/p\u003e\n\u003ch2 class=\"font-semibold leading-tight text-pretty mb-2 mt-4 [.has-inline-images_\u0026amp;]:clear-end text-lg first:mt-0 md:text-lg [hr+\u0026amp;]:mt-4\" id=\"easy-chlorine-replacement-for-the-pool-frog-xl-pro\"\u003eEasy Chlorine Replacement for the Pool FROG XL Pro System\u003c\/h2\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:align-top\"\u003eKeep your Pool FROG XL Pro system running smoothly with the FROG Pac 540C, a convenient replacement chlorine cartridge that works inside the XL Pro Chlorine Cycler. The cartridge is prefilled with Trichlor chlorine and designed to dispense a controlled, low level of sanitizer as water flows through the system.\u003c\/p\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:align-top\"\u003eWhen paired with the Pool FROG Mineral Reservoir in the XL Pro system, the FROG Pac 540C helps create the cleaner, clearer, softer water experience FROG systems are known for. It is built for low-maintenance pool care, especially for pool owners who want consistent chlorination without manually adding chlorine every day.\u003c\/p\u003e\n\u003ch2 class=\"font-semibold leading-tight text-pretty mb-2 mt-4 [.has-inline-images_\u0026amp;]:clear-end text-lg first:mt-0 md:text-lg [hr+\u0026amp;]:mt-4\" id=\"built-for-larger-pool-frog-xl-pro-systems\"\u003eBuilt for Larger Pool FROG XL Pro Systems\u003c\/h2\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:align-top\"\u003eThe FROG Pac 540C is designed specifically for the Pool FROG XL Pro Chlorine Cycler, which is commonly used on larger in-ground pools. The XL Pro system uses two cyclers: one for the FROG Mineral Reservoir and one for the larger chlorine pac. This allows the system to deliver mineral-assisted pool sanitization with a steady feed of chlorine.\u003c\/p\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:align-top\"\u003eBecause the FROG Pac 540C is larger than standard Pool FROG Bac Pac cartridges, it can help reduce how often chlorine cartridges need to be replaced. For many pool owners, that means fewer maintenance interruptions and a simpler weekly pool care routine.\u003c\/p\u003e\n\u003ch2 class=\"font-semibold leading-tight text-pretty mb-2 mt-4 [.has-inline-images_\u0026amp;]:clear-end text-lg first:mt-0 md:text-lg [hr+\u0026amp;]:mt-4\" id=\"key-benefits\"\u003eKey Benefits\u003c\/h2\u003e\n\u003ch2 class=\"font-semibold leading-tight text-pretty mb-2 mt-4 [.has-inline-images_\u0026amp;]:clear-end text-base first:mt-0\" id=\"prefilled-for-no-guess-pool-care\"\u003ePrefilled for No-Guess Pool Care\u003c\/h2\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:align-top\"\u003eThe FROG Pac 540C comes prefilled with chlorine, so there is no need to measure tablets, pour liquid chlorine, or directly handle loose sanitizer during normal replacement. Just remove the empty pac and install a new one according to the Pool FROG XL Pro instructions.\u003c\/p\u003e\n\u003ch2 class=\"font-semibold leading-tight text-pretty mb-2 mt-4 [.has-inline-images_\u0026amp;]:clear-end text-base first:mt-0\" id=\"designed-for-controlled-chlorine-release\"\u003eDesigned for Controlled Chlorine Release\u003c\/h2\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:align-top\"\u003eThis cartridge is made to work with the Pool FROG XL Pro Chlorine Cycler, which controls water flow through the pac. That controlled feed helps maintain a consistent chlorine level and supports cleaner, clearer pool water.\u003c\/p\u003e\n\u003ch2 class=\"font-semibold leading-tight text-pretty mb-2 mt-4 [.has-inline-images_\u0026amp;]:clear-end text-base first:mt-0\" id=\"supports-lower-chlorine-pool-care\"\u003eSupports Lower Chlorine Pool Care\u003c\/h2\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:align-top\"\u003eWhen used as part of the complete Pool FROG XL Pro mineral system, the FROG Pac 540C helps maintain pool water with a lower chlorine level than many traditional chlorine programs. This can help make water feel softer and more comfortable while still supporting effective sanitation.\u003c\/p\u003e\n\u003ch2 class=\"font-semibold leading-tight text-pretty mb-2 mt-4 [.has-inline-images_\u0026amp;]:clear-end text-base first:mt-0\" id=\"helps-reduce-daily-chlorine-maintenance\"\u003eHelps Reduce Daily Chlorine Maintenance\u003c\/h2\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:align-top\"\u003eThe FROG Pac 540C is ideal for pool owners who want a more automated approach to pool sanitizing. Once installed and dialed in, the XL Pro system dispenses chlorine through the pac, reducing the need for daily manual chlorine dosing.\u003c\/p\u003e\n\u003ch2 class=\"font-semibold leading-tight text-pretty mb-2 mt-4 [.has-inline-images_\u0026amp;]:clear-end text-base first:mt-0\" id=\"made-for-pool-frog-xl-pro-compatibility\"\u003eMade for Pool FROG XL Pro Compatibility\u003c\/h2\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:align-top\"\u003eThis is not a universal chlorine cartridge. It is made for use with the Pool FROG XL Pro Chlorine Cycler and should be used only with compatible FROG systems and factory-recommended replacement products.\u003c\/p\u003e\n\u003ch2 class=\"font-semibold leading-tight text-pretty mb-2 mt-4 [.has-inline-images_\u0026amp;]:clear-end text-lg first:mt-0 md:text-lg [hr+\u0026amp;]:mt-4\" id=\"product-details\"\u003eProduct Details\u003c\/h2\u003e\n\u003cdiv class=\"group relative my-[1em]\"\u003e\n\u003cdiv class=\"sticky top-0 z-20 h-0\"\u003e\n\u003cdiv class=\"absolute left-0 top-0 w-full overflow-hidden bg-raised border-x md:max-w-[90vw] border-subtlest ring-subtlest divide-subtlest\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"w-full overflow-auto scrollbar-subtle rounded-lg border md:max-w-[90vw] border-subtlest ring-subtlest divide-subtlest bg-raised\"\u003e\n\u003ctable class=\"[\u0026amp;_tr:last-child_td]:border-b-0 my-0 w-full table-auto border-separate border-spacing-0 text-sm font-sans rounded-lg [\u0026amp;_tr:last-child_td:first-child]:rounded-bl-lg [\u0026amp;_tr:last-child_td:last-child]:rounded-br-lg\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth scope=\"col\" class=\"border-subtlest p-2 min-w-[48px] break-normal border-b text-left align-bottom border-r last:border-r-0 font-bold bg-subtle first:border-radius-tl-lg last:border-radius-tr-lg\"\u003eProduct Detail\u003c\/th\u003e\n\u003cth scope=\"col\" class=\"border-subtlest p-2 min-w-[48px] break-normal border-b text-left align-bottom border-r last:border-r-0 font-bold bg-subtle first:border-radius-tl-lg last:border-radius-tr-lg\"\u003eInformation\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-subtlest p-2 min-w-[48px] break-normal border-b border-r last:border-r-0\"\u003eBrand\u003c\/td\u003e\n\u003ctd class=\"border-subtlest p-2 min-w-[48px] break-normal border-b border-r last:border-r-0\"\u003eFROG\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-subtlest p-2 min-w-[48px] break-normal border-b border-r last:border-r-0\"\u003eProduct Name\u003c\/td\u003e\n\u003ctd class=\"border-subtlest p-2 min-w-[48px] break-normal border-b border-r last:border-r-0\"\u003eFROG Pac 540C Replacement Chlorine Cartridge\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-subtlest p-2 min-w-[48px] break-normal border-b border-r last:border-r-0\"\u003eUPC\u003c\/td\u003e\n\u003ctd class=\"border-subtlest p-2 min-w-[48px] break-normal border-b border-r last:border-r-0\"\u003e722906056133\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-subtlest p-2 min-w-[48px] break-normal border-b border-r last:border-r-0\"\u003eModel \/ Order Number\u003c\/td\u003e\n\u003ctd class=\"border-subtlest p-2 min-w-[48px] break-normal border-b border-r last:border-r-0\"\u003e01-03-5613\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-subtlest p-2 min-w-[48px] break-normal border-b border-r last:border-r-0\"\u003eProduct Type\u003c\/td\u003e\n\u003ctd class=\"border-subtlest p-2 min-w-[48px] break-normal border-b border-r last:border-r-0\"\u003eReplacement chlorine cartridge \/ chlorine pac\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-subtlest p-2 min-w-[48px] break-normal border-b border-r last:border-r-0\"\u003eSystem Compatibility\u003c\/td\u003e\n\u003ctd class=\"border-subtlest p-2 min-w-[48px] break-normal border-b border-r last:border-r-0\"\u003ePool FROG XL Pro Chlorine Cycler\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-subtlest p-2 min-w-[48px] break-normal border-b border-r last:border-r-0\"\u003ePool System Type\u003c\/td\u003e\n\u003ctd class=\"border-subtlest p-2 min-w-[48px] break-normal border-b border-r last:border-r-0\"\u003ePool FROG XL Pro mineral pool care system\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-subtlest p-2 min-w-[48px] break-normal border-b border-r last:border-r-0\"\u003eChlorine Content\u003c\/td\u003e\n\u003ctd class=\"border-subtlest p-2 min-w-[48px] break-normal border-b border-r last:border-r-0\"\u003ePrefilled with Trichlor chlorine\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-subtlest p-2 min-w-[48px] break-normal border-b border-r last:border-r-0\"\u003eCartridge Size\u003c\/td\u003e\n\u003ctd class=\"border-subtlest p-2 min-w-[48px] break-normal border-b border-r last:border-r-0\"\u003eApproximately 6.16 lb chlorine pac\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-subtlest p-2 min-w-[48px] break-normal border-b border-r last:border-r-0\"\u003ePool Compatibility\u003c\/td\u003e\n\u003ctd class=\"border-subtlest p-2 min-w-[48px] break-normal border-b border-r last:border-r-0\"\u003ePool FROG XL Pro systems for pools up to 40,000 gallons\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-subtlest p-2 min-w-[48px] break-normal border-b border-r last:border-r-0\"\u003eTypical Replacement Timing\u003c\/td\u003e\n\u003ctd class=\"border-subtlest p-2 min-w-[48px] break-normal border-b border-r last:border-r-0\"\u003eReplace when empty, commonly every 3 to 4 weeks depending on pool size, use, weather, and system settings\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-subtlest p-2 min-w-[48px] break-normal border-b border-r last:border-r-0\"\u003ePack Quantity\u003c\/td\u003e\n\u003ctd class=\"border-subtlest p-2 min-w-[48px] break-normal border-b border-r last:border-r-0\"\u003e1 replacement chlorine pac\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-subtlest p-2 min-w-[48px] break-normal border-b border-r last:border-r-0\"\u003ePrimary Use\u003c\/td\u003e\n\u003ctd class=\"border-subtlest p-2 min-w-[48px] break-normal border-b border-r last:border-r-0\"\u003eControlled chlorine delivery for Pool FROG XL Pro pool sanitizing systems\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch2 class=\"font-semibold leading-tight text-pretty mb-2 mt-4 [.has-inline-images_\u0026amp;]:clear-end text-lg first:mt-0 md:text-lg [hr+\u0026amp;]:mt-4\" id=\"compatibility-and-requirements\"\u003eCompatibility and Requirements\u003c\/h2\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:align-top\"\u003eThe FROG Pac 540C is made for the Pool FROG XL Pro Chlorine Cycler. It is used as the chlorine cartridge in the XL Pro system, while the Pool FROG Mineral Reservoir is used separately in the mineral side of the system.\u003c\/p\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:align-top\"\u003eThis cartridge should not be used as a general replacement for all FROG systems. It is different from the smaller Pool FROG Bac Pac used in other Pool FROG models. For best performance and safety, use only with the compatible Pool FROG XL Pro system and follow the label and cycler manual directions.\u003c\/p\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:align-top\"\u003eBefore installing a new pac, pool water should be properly balanced, the pump and filtration system should be operating correctly, and sanitizer levels should be tested regularly.\u003c\/p\u003e\n\u003ch2 class=\"font-semibold leading-tight text-pretty mb-2 mt-4 [.has-inline-images_\u0026amp;]:clear-end text-lg first:mt-0 md:text-lg [hr+\u0026amp;]:mt-4\" id=\"how-to-use\"\u003eHow to Use\u003c\/h2\u003e\n\u003col class=\"marker:text-secondary list-decimal pl-8\"\u003e\n\u003cli class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [\u0026amp;\u0026gt;p]:pt-0 [\u0026amp;\u0026gt;p]:mb-2 [\u0026amp;\u0026gt;p]:my-0\"\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:align-top\"\u003eBalance pool water before installing the cartridge, including pH and sanitizer level.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [\u0026amp;\u0026gt;p]:pt-0 [\u0026amp;\u0026gt;p]:mb-2 [\u0026amp;\u0026gt;p]:my-0\"\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:align-top\"\u003eTurn off the pump and follow all Pool FROG XL Pro safety instructions before opening the cycler.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [\u0026amp;\u0026gt;p]:pt-0 [\u0026amp;\u0026gt;p]:mb-2 [\u0026amp;\u0026gt;p]:my-0\"\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:align-top\"\u003eRemove the empty chlorine pac from the Pool FROG XL Pro Chlorine Cycler.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [\u0026amp;\u0026gt;p]:pt-0 [\u0026amp;\u0026gt;p]:mb-2 [\u0026amp;\u0026gt;p]:my-0\"\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:align-top\"\u003ePrepare the new FROG Pac 540C according to the product and system instructions.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [\u0026amp;\u0026gt;p]:pt-0 [\u0026amp;\u0026gt;p]:mb-2 [\u0026amp;\u0026gt;p]:my-0\"\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:align-top\"\u003eInsert the pac into the chlorine cycler, aligning it correctly with the internal key or guide.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [\u0026amp;\u0026gt;p]:pt-0 [\u0026amp;\u0026gt;p]:mb-2 [\u0026amp;\u0026gt;p]:my-0\"\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:align-top\"\u003eReplace the cycler cap securely by hand, without overtightening.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [\u0026amp;\u0026gt;p]:pt-0 [\u0026amp;\u0026gt;p]:mb-2 [\u0026amp;\u0026gt;p]:my-0\"\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:align-top\"\u003eRestart the pump and set the control dial according to the Pool FROG XL Pro manual.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [\u0026amp;\u0026gt;p]:pt-0 [\u0026amp;\u0026gt;p]:mb-2 [\u0026amp;\u0026gt;p]:my-0\"\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:align-top\"\u003eTest free chlorine daily during the first week after installation, then weekly once the proper setting is established.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli class=\"py-0 my-0 prose-p:pt-0 prose-p:mb-2 prose-p:my-0 [\u0026amp;\u0026gt;p]:pt-0 [\u0026amp;\u0026gt;p]:mb-2 [\u0026amp;\u0026gt;p]:my-0\"\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:align-top\"\u003eReplace the FROG Pac 540C when empty.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch2 class=\"font-semibold leading-tight text-pretty mb-2 mt-4 [.has-inline-images_\u0026amp;]:clear-end text-lg first:mt-0 md:text-lg [hr+\u0026amp;]:mt-4\" id=\"frequently-asked-questions\"\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch2 class=\"font-semibold leading-tight text-pretty mb-2 mt-4 [.has-inline-images_\u0026amp;]:clear-end text-base first:mt-0\" id=\"what-is-the-frog-pac-540c-used-for\"\u003eWhat is the FROG Pac 540C used for?\u003c\/h2\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:align-top\"\u003eThe FROG Pac 540C is a replacement chlorine cartridge for the Pool FROG XL Pro Chlorine Cycler. It provides controlled chlorine delivery as part of the Pool FROG XL Pro mineral pool care system.\u003c\/p\u003e\n\u003ch2 class=\"font-semibold leading-tight text-pretty mb-2 mt-4 [.has-inline-images_\u0026amp;]:clear-end text-base first:mt-0\" id=\"is-the-frog-pac-540c-the-same-as-a-pool-frog-bac-p\"\u003eIs the FROG Pac 540C the same as a Pool FROG Bac Pac?\u003c\/h2\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:align-top\"\u003eNo. The FROG Pac 540C is a larger chlorine pac designed for the Pool FROG XL Pro Chlorine Cycler. Standard Pool FROG Bac Pac cartridges are used with other Pool FROG systems and are not the same cartridge.\u003c\/p\u003e\n\u003ch2 class=\"font-semibold leading-tight text-pretty mb-2 mt-4 [.has-inline-images_\u0026amp;]:clear-end text-base first:mt-0\" id=\"how-long-does-the-frog-pac-540c-last\"\u003eHow long does the FROG Pac 540C last?\u003c\/h2\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:align-top\"\u003eThe FROG Pac 540C typically lasts about 3 to 4 weeks when used in the Pool FROG XL Pro system, although actual replacement timing depends on pool size, pump run time, weather, water temperature, bather load, and dial setting.\u003c\/p\u003e\n\u003ch2 class=\"font-semibold leading-tight text-pretty mb-2 mt-4 [.has-inline-images_\u0026amp;]:clear-end text-base first:mt-0\" id=\"what-pools-is-this-cartridge-for\"\u003eWhat pools is this cartridge for?\u003c\/h2\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:align-top\"\u003eThis cartridge is for pools using the Pool FROG XL Pro system, which is designed for pools up to 40,000 gallons.\u003c\/p\u003e\n\u003ch2 class=\"font-semibold leading-tight text-pretty mb-2 mt-4 [.has-inline-images_\u0026amp;]:clear-end text-base first:mt-0\" id=\"does-this-cartridge-replace-the-mineral-reservoir\"\u003eDoes this cartridge replace the Mineral Reservoir?\u003c\/h2\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:align-top\"\u003eNo. The FROG Pac 540C is the chlorine cartridge. The Pool FROG Mineral Reservoir is a separate part of the XL Pro system and must be maintained according to the system instructions.\u003c\/p\u003e\n\u003ch2 class=\"font-semibold leading-tight text-pretty mb-2 mt-4 [.has-inline-images_\u0026amp;]:clear-end text-base first:mt-0\" id=\"do-i-still-need-to-test-my-pool-water\"\u003eDo I still need to test my pool water?\u003c\/h2\u003e\n\u003cp class=\"my-2 [\u0026amp;+p]:mt-4 [\u0026amp;_strong:has(+br)]:inline-block [\u0026amp;_strong:has(+br)]:align-top\"\u003eYes. Even with an automatic chlorine pac system, pool water should be tested regularly to confirm proper free chlorine, pH, alkalinity, stabilizer, calcium hardness, and overall water balance.\u003c\/p\u003e","brand":"FROG","offers":[{"title":"Default Title","offer_id":48289309262011,"sku":"01-03-5613","price":82.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0269\/2625\/2077\/files\/Frog540CChlorineCartridge_1.jpg?v=1787523353","url":"https:\/\/hottubpirate.com\/products\/frog-pac-540c-replacement-chlorine-cartridge-for-pool-frog-xl-pro-cycler","provider":"Hot Tub Pirate","version":"1.0","type":"link"}