Picture says ita 21" in diameter but dimensions say 28", which is it?

The diameter inside of the dome is approximately 21" but the dimension from the outside edge of the flange (that mounts to the floor) to the opposite outside edge of the flange is approximately 28". Hope that makes sense.

Your graphic says 21inches while the product description says 28. My sump pit is 22.5. Which measurement is accurate?

Both. The outer flange is 28", which will cover your sump pit. The cover in the middle (the round disk with the holes) is 21". It should fit perfectly over your pit.

Can it fit 3/4 inch pipe ? Do you have rubber seal for included?

It has no threads so you cannot screw a hose or pipe. It’s strictly to be used as a drain hole.

I have a pit dia is 19inch and dirt floor how do I make a tight seal

If you don't have a concrete surround for your pit, you would have to build one as a first step. Simply excavate some of the dirt around the pit, build forms to create a floor area larger than the cover, and pour some concrete to create a flat floor area around the pit.

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JACKEL - Original Radon Sump Dome (Model: SMR16101-CV)

JACKEL - Original Radon Sump Dome (Model: SMR16101-CV)

Product ID: 85873978

Details

Brand
Jackel
Color
Black
Global Trade Identification Number
Item Weight
10.8 pounds
Manufacturer
Jackel
Material
Polyethylene

🏠No-dig basement install

⚙️Universal retrofit fit

🛡️Heavy-duty radon & odor seal

AR$1086863

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Description

🛠️ Upgrade your sump cover, upgrade your peace of mind!

TOP DISCHARGE VENT - Engineered for passive radon mitigation with efficient venting.
EFFORTLESS RETROFIT - Fits over any existing sump or sewage basin—no costly floor excavation needed.
DURABLE LIGHTWEIGHT - Only 10.8 lbs of structural foam strength for easy handling and lasting protection.
SEAL OUT RADON ODORS - Heavy-duty polyethylene foam locks in safety and peace of mind.
UNIVERSAL COMPATIBILITY - One cover fits all standard basins—perfect for property transfers and rentals.

The JACKEL Original Radon Sump Dome (Model SMR16101-CV) is a robust polyethylene structural foam cover designed to seal existing sump and sewage basins against radon gas and odors. It installs easily without floor excavation, fits universally over all standard basins, and features a top discharge vent for passive radon mitigation—ideal for property transfers, rentals, and long-term safety.

Specifications

ASIN	B073V3RV5X
Best Sellers Rank	#44,647 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #20 in Water Pump Accessories
Brand Name	Jackel
Color	Black
Customer Reviews	4.6 4.6 out of 5 stars (609)
Global Trade Identification Number	00856201007092
Included Components	cover
Item Dimensions L x W x H	28"L x 28"W x 4"H
Item Type Name	The Original Radon / Sump Dome (Model: SMR16101-CV)
Item Weight	10.8 pounds
Manufacturer	Jackel
Manufacturer Part Number	SMR16101 #2
Material Type	Polyethylene Structural Foam
Model Number	SMR16101-CV
Number of Items	1
Number of Packs	1
Power Source	Manual
Product Style	Submersible
Specific Uses For Product	Basement and garage sump basin cover, property transfers, rentals
UPC	856201007092
Unit Count	1 Count

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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AR$1086863

Duties & taxes included

In stock

Sold byAmazon ArgentinaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Argentina.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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