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SKU: 28477
The Best Sump Drain Sealing Product

Good things come in small packages, and the new HI-PERDRAIN™ ST from RadonAway is not just good...it's great! It brings to the radon industry the most compact, high-performing sump cover drain.

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Availability: In stock

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1-2 day shipping in most of US

Five year manufacturer’s warranty on RadonAway fans

Free technical support for our customers




  • Easy to install
  • Low Profile Design (4" depth)
  • Flows 2.5GPM @ 4" of Vacuum
  • Fits RadonAway Clear Sump Covers
  • >3 GPM Maximum Flow
  • 2" NPT
  • Durable PVC Body
  • No "Whistling" under Vacuum
  • Removable Grate and Ball for Easy Cleaning/Maintenance

Additional HI-PERDRAIN™ ST Information:

Additional Info

Additional Info

SKU 28477
Pack Size Each


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Conditions of Sale

  1. All sales are subject to the terms and conditions hereof. No modifications or additions thereto shall be binding on Seller, unless consented to in writing signed by Seller's duly authorized representative.

  2. With respect to goods manufactured and sold by Seller, such goods sold hereunder are warranted to be free from defects in material and workmanship. Seller will repair or replace, without charge, any goods proven defective.

  3. With respect to goods distributed by Seller, but not manufactured by Seller, the Seller will accept returns on all such goods for a period of thirty days from the date of sale. Thereafter, all such goods must be returned to the  manufacturer of the goods by the buyer, under the specific terms of the manufacturer's warranty unless the manufacturer has designated the Seller  as  an  agent  of  the manufacturer for warranty purposes.
For the remainder of the Sales Terms and Conditions, please see the Sales Terms & Conditions page.