I just ordered the 4” ball and hoping it will expand large enough to fill a 5 1/2” pipe. Will this work or do you have a bigger one?

I bought some pills that claimed they could expand my 4" tool to 5.5". We're both out of luck, buddy.

how is this product filled with air? can you use a bicycle tire air pump or must it be an aircompresor?

We used a portable air tank, that we filled at the local gas station. The fitting is for a car tube type valve, not sure if a bicycle pump has the same fitting, but if so it should inflate the product. We have such confidence in this that we have purchased another one just as a stand by.

Would this product create an air tight seal?

I filled a 4" sewer line up with water and plugged it with the test ball plug and had no leakage. So it works well for water. There was no pressure in the line, so if you are talking about air pressure and how much, not sure if it was designed for that.

Material	Rubber
Brand	Cherne
Color	Black
Product Dimensions	3.25"W x 6.5"H
Item Weight	0.7 Pounds
UPC	094717297877 784497427273 675115270046
Global Trade Identification Number	00675115270046
Number of Items	1
Manufacturer	Cherne
Part Number	270040
Item Weight	11.2 ounces
Country of Origin	China
Item model number	270040
Is Discontinued By Manufacturer	No
Size	4 Inch
Item Package Quantity	1
Number Of Pieces	1
Measurement System	inch
Included Components	(1) 4 in. Rubber Test Ball Pipe Plug
Batteries Included?	No
Batteries Required?	No
National Stock Number	4730-01-280-9718

Cherne 270040 4" Rubber Test-Ball Pipe Plug

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