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Twist the wing nut on these plugs to expand the seal.
Tighten the nut on these plugs to expand the seal.
Twist the easy-grip t-handle on these plugs to expand the seal.
Turn the cam handle to expand the seal, then snap the handle down to hold it in place.
Turn the square head of the plug into the sealing ring to close off pipe openings.
Use the bypass tube on these plugs to add air, water, and other fluid to your pipeline or to relieve pressure while testing.
Also known as pneumatic plugs, these plugs conform to wide and out-of-round pipes.
Penetrate tight pipe junctures with the most flexible expansion plugs we offer.
These extra-long plugs allow you to seal off two pipes at the same time. They have two separate inflation chambers to release back pressure gradually and prevent splash back as water clears the drain line.
Use the bypass tube on these plugs to add air, water, and other fluid to your pipeline or to relieve back pressure while testing.
Use the bypass tube to add air, water, and fluid or relieve back pressure.
Insert these plugs deep within your pipe to temporarily block off a line. Twist their wing nut to expand the seal.
Tighten these threaded fittings with your hands for a secure connection in testing, flushing, venting, and plugging applications—no tools, tape, or sealant required.
Check pressure without permanently installing a gauge.
Close off your drain cleanout pipe with these plugs.
Seal unthreaded pipe ends with these plugs. They come with a band that clamps over the outside wall of your pipe and tightens with a screwdriver.
Add quick connection points for mechanical gauges and other diagnostic equipment to your line. These couplings are also known as test ports and diagnostic couplings.
Made of polypropylene, these gravity-flow fittings withstand organic solvents, such as acetone, that would dissolve CPVC pipe. They also stand up to highly corrosive acids, such as hydrochloric acid, and alkalies.
Place a plug into an opening and tighten the wing nut—the sides expand to create a seal in holes of varying diameters.
The hollow construction allows these plugs to compress for a snug fit in threaded and unthreaded holes of varying diameters.
Often used as laboratory stoppers, these rubber plugs have good impact and abrasion resistance. They’re tapered to fit a range of hole diameters.
Sized to fit small openings, these tiny plugs fit snugly but can be removed easily using the flange. Their tapered design fits a range of hole diameters.
Lightweight and moisture resistant, these plugs are laboratory-grade 100% natural cork. They’re tapered to fit a range of hole diameters.
Often used on gas cylinders, these plugs cinch and lock tightly around valve heads to block the ports—they must be cut off making it clear if the cylinder has been tampered with. The plugs are tapered to fit a range of hole diameters.
Pull the two built-in rings to quickly remove these plugs. All are tapered to fit a range of hole diameters.
Good for electroplating, paint baking, and powder-coating applications, these plugs withstand temperatures up to 570° F. All are tapered to fit a range of hole diameters.
The hollow construction allows these plugs to compress for a snug fit in threaded and unthreaded holes of varying diameters. Good for electroplating, paint baking, and powder-coating applications, they withstand temperatures up to 450° F.
Sized to fit small openings, these tiny plugs fit snugly but can be removed easily using the flange. They withstand temperatures up to 470° F, which makes them good for electroplating, paint baking, and powder-coating applications. All are tapered to fit a range of hole diameters.
Place a plug into an opening and tighten the wing nut—the sides expand to create a seal in holes of varying diameters. Good for paint baking and powder-coating applications, these plugs withstand temperatures up to 450° F.
These plugs have excellent chemical resistance for masking parts during chemical finishing applications such as plating and anodizing. Their tapered design fits a range of hole diameters.
Made of FDA listed materials, these plugs are suitable for food contact. They're tapered to fit a range of hole diameters.
With a compressible flanged top, these plugs are designed to seal the ends of copper tubing often used in water supply lines, refrigerant lines, and HVAC compressors. All are sized to fit standard copper tube dimensions.
With a surface resistivity of less than 105 ohms, these plugs not only dissipate electrical charges, but can be used as an electrical shield.
Seal tube and hose fittings to keep their straight threads protected from contaminants during fabrication and storage.
Protect internally threaded NPT connections from contaminants during fabrication and storage.
These plugs withstand temperatures up to 600° F to protect internally threaded NPT connections from contaminants during electropainting, paint baking, and powder coating applications.
Safeguard internally threaded BSPT connections from contaminants during fabrication and storage.
Designed to fit into 37° flared connections such as those found on JIC and SAE fittings, these plugs protect internally threaded connections from contaminants during fabrication and storage.
Flexible ridges or straps hold these plugs in place and allow them to fit a range of hole diameters.
Also known as mouse tails, these tiny plugs fit through-hole IDs as small as 0.022”, 0.025", or 0.03”.
Flexible ridges or straps hold these plugs in place.
More durable than plastic plugs, these provide the most protection from abrasion and impact. Use them to eliminate sharp edges and create a finished look on metal fence and machine-guard posts. Drive them in place with a hammer for a secure fit.
Flexible ridges securely hold these plugs in place and allow them to fit a range of hole sizes.
Permanently seal unthreaded holes in pneumatic and hydraulic components.
A one-piece hinged design allows frequent access to screw heads without misplacing the top. To conceal and protect the entire screw head, insert your screw through the hole in the base and flip the hinged top over.
Tug on the pull tabs to stretch these caps onto the tips of bottles, beakers, flasks, and cylinders, creating an airtight seal.
Guard the corners of fragile materials such as glass and mirrors.
These flexible plastic caps are tapered to fit a variety of unthreaded and threaded objects.
These caps have excellent chemical resistance for masking parts during chemical finishing applications such as plating and anodizing.
A long, textured pull tab provides a sure grip for quick removal even when wearing gloves.
Slide these flexible vinyl caps on and they conform for a snug fit.
Made of rigid plastic, these caps are more wear resistant than vinyl caps but not as flexible.
Stretch these caps over flared edges such as flanged tubing and valve handles.