What is the maximum back pressure that these plugs can hold?

They can hold a maximum back pressure of 24 ft of head.

What is air back pressure?

Air back pressure is the amount of pressure a plug can withstand without moving.

They are ideal for creating low-pressure seals in circular openings.

Turn-Tite mechanical expansion plugs from Shaw aid in repair & testing of water, sewer and plumbing systems.

Filter

Style	Model	For Pipe Size	Nominal Size	Max. Back Pressure	Inside Dia.	Head Type	Plug Seal Location	Plug Seal Material	Plate Material	Price
A	52401	1"	1"	10 psi	0.937" to 1.031"	T Handle	End Of Pipe	Neoprene	Stainless Steel	€84.18
A	52496	1/2"	1/2"	10 psi	0.48" to 0.528"	T Handle	End Of Pipe	Neoprene	Stainless Steel	€121.19
A	52498	3/4"	3/4"	10 psi	0.719" to 0.791"	T Handle	End Of Pipe	Neoprene	Stainless Steel	€127.27
B	52497	5/8"	5/8"	10 Ft. Of Head	-	T Handle	End Of Pipe	Neoprene	Stainless Steel	€122.62
A	52499	7/8"	7/8"	10 psi	0.812" to 0.893"	T Handle	End Of Pipe	Neoprene	Stainless Steel	€127.70

These plugs have an easy-grip T-handle that expands the seal to close off pipe openings.

These plugs feature stainless steel construction and are intended for pipes with internal diameters ranging from 0 to 1 inch.
They have a chemical-resistant neoprene rubber seal that absorbs shock and protects against the ingress of water & dust.
The Turn-Tite T-handle provides an excellent grip to fasten the expanding plug into a hole.