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

⚙️Universal fit for all sump basins

🌬️Passive radon gas sealing & venting

🛡️Heavy-duty polyethylene foam cover

257618 Ft

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Sold byAmazon HungaryDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🛠️ Upgrade your sump cover game—seal in safety, seal out worries!

DURABLE LIGHTWEIGHT - Constructed from polyethylene structural foam, it’s tough enough to last yet light enough for easy handling.
SEAL OUT RADON ODORS - Create a fully sealed barrier against harmful radon gas and unpleasant odors without costly floor excavation.
UNIVERSAL COMPATIBILITY - Designed to fit over all standard sump and sewage basins, making it the go-to solution for any property.
EFFORTLESS RETROFIT INSTALLATION - Simply swap your old cover for the Jackel Dome—no need to remove or replace your existing sump or sewage basin.
IDEAL FOR PROPERTY TRANSFERS RENTALS - Ensure safety and compliance with a quick upgrade that adds value and peace of mind to any home transaction.

The JACKEL Original Radon Sump Dome (Model SMR16101-CV) is a heavy-duty polyethylene foam cover designed to retrofit existing sump and sewage basins. It provides a passive radon gas seal and venting system, preventing harmful gases and odors from entering your living space. Easy to install without floor excavation, it fits universally over all standard basins, making it perfect for property transfers, rentals, and long-term home safety.

Specifications

ASIN	B073V3RV5X
Best Sellers Rank	#48,694 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #27 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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257618 Ft

Duties & taxes included

In stock

Sold byAmazon HungaryDelivered 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 Hungary.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Ali H.

Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

1 day ago

Anjali K.

The product quality is outstanding. Exactly what I needed for my work.

1 month ago

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