Hayward Sand Filter Dome | SX200K
Hayward Products
SKU: SX200K
Hayward SX200K Dome Lid Replacement for S200 & S240 Sand Filters
The Hayward SX200K is a genuine replacement filter dome lid used on select Hayward S200 and S240 series sand filters. This threaded dome-style lid seals the top opening of the filter tank and includes the molded features needed for proper fit and reliable closure.
Key Features
- Part Number: SX200K
- Brand: Hayward
- Type: Sand filter dome lid / closure dome
- Color: Black
- Mounting Style: Threaded (large buttress threads)
- Common Use: Hayward S200 and S240 series sand filters
Approximate Dimensions (For Verification)
- Outside Diameter (at flange): approx. 7-1/2"
- Outside Diameter (at threads): approx. 6"
- Height: approx. 3-5/8"
Common Reasons to Replace
- Cracked dome lid or damaged threads
- Persistent seepage or air entry at the lid area (after confirming O-ring/gasket condition)
- Worn or deformed lid that no longer seats evenly
- Missing lid after service or seasonal storage
Installation Notes
- Confirm your filter model is an S200 or S240 series and compare lid thread style before ordering.
- Clean all sealing surfaces and remove sand/grit before reinstalling the lid.
- Do not overtighten—hand-tighten to a firm seat to avoid warping or thread damage.
- If your system uses a separate O-ring/gasket for the lid, inspect and replace it if flattened or cracked.
Related Products
- Hayward SX200K Dome Lid
- Hayward S200 Sand Filter Parts
- Hayward S240 Sand Filter Parts
- Hayward SX200Z7 Tank O-Ring / Seal
- Hayward SX200Q Threaded Lateral
- Pool-Safe Silicone O-Ring Lubricant
Maintenance Tips
- Keep the lid sealing area clean—sand and debris on sealing surfaces are a common cause of leaks.
- Inspect the lid threads and sealing surfaces during seasonal service.
- Use only pool-safe silicone lubricant on O-rings (if applicable) and avoid petroleum-based products.
- If the lid becomes difficult to seat, check for cross-threading, debris, or a worn seal before forcing it.
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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