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Spa Frog Serene Cartridge Refill Kit | 01-14-3856

Frog SKU: 1/14/3856
Spa Frog Serene Cartridge Refill Kit | 01 - 14 - 3856 - Frog - img - 1

Spa Frog Serene Cartridge Refill Kit | 01-14-3856

Frog SKU: 1/14/3856
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$86.80 Regular price $86.80
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Spa Frog Serene Cartridge Refill Kit | 01‑14‑3856

The official **Spa Frog Serene Cartridge Refill Kit** from King Technology includes **1 blue mineral cartridge** and **3 yellow bromine cartridges**, designed for use with the Spa Frog Serene Floating or In-line systems found in many hot tubs.

Key Features:

  • Mineral cartridge lasts up to 4 months—softens water and reduces bromine usage up to 50%
  • Three bromine cartridges (150 g each) provide 2–4 weeks of sanitizer per cartridge
  • Prefilled cartridges eliminate handling chemicals manually
  • Compatible with systems in Marquis, Caldera, Emerald, Leisure Bay, Saratoga, Morgan, and other spa brands
  • Easy replacement—snap into the reusable Serene Floating Holder or inline feeder

Technical Specifications:

  • Part Number / SKU: 01‑14‑3856
  • Includes: 1 mineral cartridge (≈4 months), 3 bromine cartridges (each ≈2–4 weeks)
  • Weight: approx. 0.75–1.0 lb
  • UPC: 722906038511

Performance & Benefits:

  • Reduces bromine use—delivers “Fresh Mineral Water®” and soft spa feel
  • Sets sanitizer release to low-level bromine (minimized odor)
  • Simplifies spa care—just replace cartridge monthly
  • Helps maintain crystal-clear, low-maintenance spa water

Usage Tip: Replace the mineral cartridge every 4 months (or when refilling your spa), and replace a bromine cartridge every 2–4 weeks depending on spa usage. Ensure your filter is clean and sanitizer levels are maintained for best performance.

SKU: 01-14-3856

Questions about returns? View our return policy.

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Monday - Friday: 7:00 am to 5:00 pm Phoenix Time

Saturday: 8:00 am to 2:00 pm

Sunday: Closed

  • We do not ship on Saturday or Sunday.
  • Orders totaling more than $300 will require signature confirmation upon delivery.
  • We process and prepare orders for shipment within 1 business day. Please note that many other pool supply retailers require 3–5 days of handling time before shipping.
  • Orders placed after 1:00 pm Phoenix Time may not be eligible for same-day shipment.
  • Expedited shipping options are available at checkout.

Return Policy:

  • Products that are received damaged will receive a refund in store credit.
  • Most products are eligible for return within 30 days of receipt, except where noted below.
  • To initiate a return, please complete an RMA form prior to sending your item back.
  • Original shipping costs are non-refundable and will be deducted from the return credit.
  • Items returned missing accessories or original packaging, or that are not in the same condition as received, may be subject to a restocking fee of up to 100% depending on the condition of the item upon return.
  • Some returns will be charged an automatic 15% restocking fee.
  • We are unable to issue refunds for items that have been damaged or rendered inoperable due to installer error.
  • Please complete the return form to receive your RMA number and return shipping label.
  • Chemical products are not eligible for return under any circumstances.
  • The Pentair Colorsync 618031 is not eligible for return.
  • Pool cleaners are not eligible for return.
  • Opened seals and o-rings are not eligible for return.
  • Capacitors are not eligible for return.
  • Plastic popup tools are not eligible for return.
  • Automation components and circuit boards are not eligible for return.
  • If a light is returned due to a reported malfunction and is found to be fully operational upon testing, return shipping costs and a restocking fee will be deducted from the refund.
  • Orders refused at the time of delivery will be subject to the original shipping costs being deducted from the refund.