Unicel Replacement Filter Cartridge 50 sf | 4CH-949
Unicel
SKU: 4CH-949
Unicel Replacement Cartridge – 50 sq ft | Model 4CH‑949
The Unicel 4CH‑949 is a high-capacity spa filter cartridge offering approximately 50 sq ft of filtration media. Built to OEM specs for spas by Waterway, Dynasty, Rising Dragon, Cal Spas, Master Spas, and related brands.
Key Features:
- 50 sq ft of premium 3 oz spunbonded polyester (Reemay®) media
- Approximately 210 pleats for outstanding dirt-holding capacity and flow
- Dimensions: ~4 15/16″ outer diameter × ~13 1/2″ length
- Top cap with V‑groove semi-circular handle for easy removal
- Bottom end: 2″ female SAE thread for secure connection
- Filters debris down to ~20 microns while minimizing pressure buildup
Technical Specifications:
- Model / SKU: 4CH‑949
- Filtration Area: ~50 sq ft
- Pleat Count: ~210
- Dimensions: OD ~4 15/16″ × Length ~13 1/2″
- End Caps: Handle top; 2″ FPT bottom
- Media Weight: 3 oz/yard polyester
- Micron Rating: ~20 µm
Maintenance Tip: Rinse gently with a garden hose—avoid pressure washing. Replace every 6–12 months depending on spa usage and condition, or sooner if flow pressure increases or media shows signs of wear.
SKU: 4CH-949
Questions about returns? View our return policy.
Hours Of Operation:
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.
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