Hayward Lower Filter Body w/ Clamp | DEX2420ATC
Hayward Products
SKU: DEX2420ATC
Hayward DEX2420ATC Lower Filter Body with Clamp System (Tank Bottom Assembly) – Pro-Grid® DE2420
The Hayward DEX2420ATC is a genuine OEM lower filter body (tank bottom) with clamp system for the Hayward Pro-Grid vertical grid D.E. filter DE2420. This is the lower tank assembly used when the original tank bottom is cracked, warped, leaking at the seam, or damaged from freezing, overtightening, or long-term wear.
Fits / Compatibility
- Hayward Pro-Grid vertical grid D.E. filter: DE2420 (24 sq ft)
- Pool Type: In-Ground
What’s Included
- Lower filter body / tank bottom
- Clamp system to secure the upper and lower tank halves
Note: Some versions of the “with clamp system” package may be bundled as a complete clamp kit (clamp ring + metal-reinforced seal + nut/bolt hardware). Always confirm what’s included with your specific listing if you need clamp hardware and seal components.
Key Details
- Part Number: DEX2420ATC
- GTIN/UPC: 610377106917
- Replacement Part Warranty (typical): 6 months (parts only)
Common Reasons to Replace
- Cracks or leaks in the lower tank body
- Seam leaks that persist after seal replacement due to damaged tank surfaces
- Freeze damage or physical impact damage
- Warped tank flange that prevents even clamp sealing
Installation Notes
- Shut off the pump and fully relieve filter pressure at the air relief before loosening the clamp.
- Clean the tank flange and sealing surfaces thoroughly—grit is a common cause of seam leaks.
- Inspect the tank seal and replace it if flattened, nicked, or stiff; seat it evenly before clamping.
- Tighten the clamp uniformly per the filter’s instructions and re-check for seepage after restart.
Related Products
- Hayward DEX2420ATC (search)
- Hayward Pro-Grid DE2420 Parts (search)
- Hayward DEX2421JKIT Clamp System Kit (search)
- Hayward DEX2421J2 Clamp Nut & Bolt Kit (search)
- Hayward Metal-Reinforced Tank Seal (search)
- Silicone O-Ring & Gasket Lubricant (search)
Maintenance Tips
- Never loosen a clamp while the filter is pressurized—always shut off the pump and bleed air first.
- Keep the clamp band and tank flanges clean; debris under the seal can cause seam leaks.
- Lightly lubricate the tank seal with silicone-based lube to help prevent pinching and improve resealing.
- In freeze-prone areas, winterize properly by draining the filter completely to help prevent tank cracking.
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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