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Expansion Plug Type Expansion Plug Type |
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Wing Nut | Hex Nut |
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T-Handle | Snap |
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Inflatable | Square Head |
Sealing Location Sealing Location |
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Plate Material Plate Material |
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System of Measurement System of Measurement |
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Maximum Air Back Pressure Maximum Air Back Pressure |
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For Shape For Shape |
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Seal Material Seal Material |
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Maximum Temperature Maximum Temperature |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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Plug Type Plug Type |
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Maximum Water Back Pressure Maximum WaterBack Pressure |
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RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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Overall Height Overall Height |
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REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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About Durometer Hardness Scales
More
Low-Pressure Clamp-On Connectors for Drain, Waste, and Vent
Tighten the bands on these connectors to form a strong seal on pipe or fittings.
For technical drawings and 3-D models, click on a part number.

- For Use With: Air, Water
- Temperature Range: -40° to 120° F
- Specifications Met: ASTM D5926
- For Pipe Material: Stainless Steel, Iron, Steel, Aluminum, PVC Plastic, CPVC Plastic
For Pipe OD | For Pipe Size | Max. Pressure | Material | Clamp Material | Flexibility | Each | |
Pipe | |||||||
---|---|---|---|---|---|---|---|
4 1/2" | 4 | 4 psi @ 72° F | PVC Plastic | 300 Series Stainless Steel | Flexible | 0000000 | 00000 |
Hollow Tapered Plugs

The hollow construction allows these plugs to compress for a snug fit in threaded and unthreaded holes of varying diameters. Use the flange to remove them with ease.
For technical drawings and 3-D models, click on a part number.
Metal Round Caps

More durable than plastic caps, these provide the most protection from abrasion and impact.
Steel caps are stronger than aluminum.
Aluminum caps have good corrosion resistance, are lightweight, and are nonmagnetic.
For technical drawings and 3-D models, click on a part number.
Tapered Caps

These flexible plastic caps are tapered to fit a variety of unthreaded and threaded objects.
For technical drawings and 3-D models, click on a part number.
For OD | For Pipe Size | Inside Ht. | Max. Temp., °F | Color | Pkg. Qty. | Pkg. | |
Flexible Polyethylene Plastic | |||||||
---|---|---|---|---|---|---|---|
4.37"-4.62" | 4 | 1" | 150° | Red | 10 | 0000000 | 000000 |
For OD | For Pipe Size | Inside Ht. | Max. Temp., °F | Color | Pkg. Qty. | Pkg. | |
Flexible Polyethylene Plastic | |||||||
---|---|---|---|---|---|---|---|
4.29"-4.54" | 4 | 1" | 150° | Red | 10 | 0000000 | 000000 |
Tear-Tab Caps


Push these caps onto pipe and fittings, then tear their tab to break the seal for easy removal.
For technical drawings and 3-D models, click on a part number.
For OD | For Pipe Size | Inside Ht. | Max. Temp., °F | Color | Pkg. Qty. | Pkg. | |
Rigid Polyethylene Plastic | |||||||
---|---|---|---|---|---|---|---|
For NPT Tapered-Thread Pipe and Unthreaded Pipe | |||||||
4.412" | 4 | 4 9/16" | 150° | Blue | 10 | 0000000 | 00000 |
Adhesive-Back Flange Caps

Stick these caps on the raised surfaces of flanges or other flat surfaces for extra protection during transport and storage.
For technical drawings and 3-D models, click on a part number.
For Pipe Size | For OD | Adhesive Type | Max. Temp., °F | Color | Pkg. Qty. | Pkg. | |
Rigid Plastic | |||||||
---|---|---|---|---|---|---|---|
4 | 6 3/16" | Rubber | 160° | Black | 3 | 0000000 | 000000 |
Flange Caps


Snap these caps into flange bolt holes to safeguard pipe flanges during shipping, storing, and finishing applications. They all have a thick center pad to protect the flange opening and pipe threads from damage.
For technical drawings and 3-D models, click on a part number.
For Pipe Size | For Pressure Class | For Bolt Circle Dia. | Max. Temp., °F | Color | Pkg. Qty. | Pkg. | |
Flexible Polyethylene Plastic | |||||||
---|---|---|---|---|---|---|---|
4 | 150 | 7 1/2" | 175° | Red | 1 | 0000000 | 00000 |
Wing Nut Expansion Plugs



Twist the wing nut on these plugs to expand the seal and close off pipe openings. Maximum air back pressure is the amount of pressure a plug can withstand without moving. Maximum water back pressure refers to the pressure resulting from the height of the water above the plug.
A wide top flange on Style B stops these plugs from falling into pipes.
Lock Style D with a padlock (not included) to limit access.
For Pipe | Max. Back Pressure | |||||||||
---|---|---|---|---|---|---|---|---|---|---|
Size | ID | Air, psi | Water, ft. of head | O'all Ht. | Temp. Range, °F | Seal Material | Lock Type | For Max. Shackle Dia. | Each | |
Style A | ||||||||||
Zinc-Plated Steel Plate | ||||||||||
4 | 3.78"-4.50" | 2 | 5 | 3 1/4" | -20° to 125° | Natural Rubber | __ | __ | 0000000 | 00000 |
Stainless Steel Plate | ||||||||||
4 | 3.78"-4.30" | 2 | 5 | 3 1/4" | 0° to 175° | Buna-N Rubber | __ | __ | 0000000 | 00000 |
Style B | ||||||||||
Plastic Plate | ||||||||||
4 | 3.80"-4.06" | 17 | 40 | 2 1/2" | -20° to 125° | Natural Rubber | __ | __ | 0000000 | 00000 |
Style D | ||||||||||
Plastic Plate | ||||||||||
4 | 3.80"-4.38" | 6 | 15 | 3" | -20° to 125° | Buna-N Rubber | Padlockable | 5/16" | 00000000 | 00000 |
Hex-Nut Expansion Plugs

Tighten the nut on these plugs to expand the seal and close off pipe openings. Maximum air back pressure is the amount of pressure a plug can withstand without moving. Maximum water back pressure refers to the pressure resulting from the height of the water above the plug.
For Pipe | Max. Back Pressure | |||||||
---|---|---|---|---|---|---|---|---|
Size | ID | Air, psi | Water, ft. of head | O'all Ht. | Temp. Range, °F | Seal Material | Each | |
Style B | ||||||||
Stainless Steel Plate | ||||||||
4 | 3.97"-4.10" | 5 | 12 | 3 3/16" | -40° to 250° | Neoprene Rubber | 0000000 | 000000 |
Quick-Snap Expansion Plugs

Turn the cam handle to expand the seal, then snap the handle down to hold it in place and close off pipe openings. Maximum air back pressure is the amount of pressure a plug can withstand without moving. Maximum water back pressure refers to the pressure resulting from the height of the water above the plug.
For technical drawings and 3-D models, click on a part number.
For Pipe | Max. Back Pressure | Brass Handle | Stainless Steel Handle | |||||||
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Size | ID | Air, psi | Water, ft. of head | O'all Ht. | Temp. Range, °F | Seal Material | Each | Each | ||
Zinc-Plated Steel Plate | ||||||||||
4 | 3.94"-4.10" | 5 | 12 | 2 5/16" | -40° to 250° | Neoprene Rubber | 0000000 | 000000 | 000000 | 00 |
Stainless Steel Plate | ||||||||||
4 | 3.94"-4.10" | 5 | 12 | 2 5/16" | -40° to 250° | Neoprene Rubber | 000000 | 00 | 0000000 | 000000 |
T-Handle Expansion Plugs

Twist the easy-grip t-handle on these plugs to expand the seal and close off pipe openings. Maximum air back pressure is the amount of pressure a plug can withstand without moving. Maximum water back pressure refers to the pressure resulting from the height of the water above the plug.
For technical drawings and 3-D models, click on a part number.
For Pipe | Max. Back Pressure | Brass Handle | Stainless Steel Handle | |||||||
---|---|---|---|---|---|---|---|---|---|---|
Size | ID | Air, psi | Water, ft. of head | O'all Ht. | Temp. Range, °F | Seal Material | Each | Each | ||
Zinc-Plated Steel Plate | ||||||||||
4 | 3.97"-4.10" | 5 | 12 | 3 11/16" | -40° to 250° | Neoprene Rubber | 0000000 | 000000 | 000000 | 00 |
Stainless Steel Plate | ||||||||||
4 | 3.97"-4.10" | 5 | 12 | 3 11/16" | -40° to 250° | Neoprene Rubber | 000000 | 00 | 0000000 | 0000000 |
Square-Head Expansion Plugs

Turn the square head of the plug into the sealing ring to close off pipe openings. Maximum air back pressure is the amount of pressure a plug can withstand without moving. Maximum water back pressure refers to the pressure resulting from the height of the water above the plug.
For Pipe | Max. Back Pressure | |||||||
---|---|---|---|---|---|---|---|---|
Size | ID | Air, psi | Water, ft. of head | O'all Ht. | Temp. Range, °F | Seal Material | Each | |
Plastic Head | ||||||||
4 | 4.03"-4.12" | 21 | 50 | 2" | 35° to 210° | Polyurethane Rubber | 00000000 | 000000 |
Expansion Plugs with Bypass



Use the bypass tube on these plugs to add air, water, and other fluid to your pipeline or to relieve pressure while testing. Maximum air back pressure is the amount of pressure a plug can withstand without moving. Maximum water back pressure refers to the pressure resulting from the height of the water above the plug.
For Pipe | Max. Back Pressure | Material | Bypass | |||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Size | ID | Air, psi | Water, ft. of head | O'all Ht. | Temp. Range, °F | Seal | Bypass Cap | Pipe Size | Thread Type | Gender | Each | |
Style A | ||||||||||||
Aluminum Stem | ||||||||||||
4 | 3.85"-4.25" | 35 | 81 | 8 1/4" | -20° to 170° | Natural Rubber | Metal | 1/2 | NPS | Male | 0000000 | 000000 |
Style C | ||||||||||||
Iron Stem | ||||||||||||
4 | 3.63"-4.00" | Not Rated | 23 | 10 1/8" | 30° to 150° | Natural Rubber | Metal | 1/2 | NPT | Male | 0000000 | 00000 |
Style D | ||||||||||||
Plastic Stem | ||||||||||||
4 | 3.54"-4.25" | 15 | 34 | 4 1/2" | -40° to 180° | Natural Rubber | Plastic | 1/2 | NPT | Male | 0000000 | 00000 |
Air-Inflatable Plugs
Conform to wide and out-of-round pipes with these inflatable plugs. Also known as pneumatic plugs, they're designed for temporary seals since they can lose pressure over time. Inflate with a hand pump (sold separately); an air compressor may overinflate the plug and cause damage. Tether the plugs using either the eyebolt or chain/ring so they don't get lost or stuck in your pipes. Maximum air back pressure is the amount of pressure a plug can withstand without moving. Maximum water back pressure refers to the pressure resulting from the height of the water above the plug.

For Pipe | Deflated | Max. Back Pressure | Material | ||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Size | ID | Dia. | Ht. | Air, psi | Water, ft. of head | Required Inflation Pressure, psi | Temp. Range, °F | Seal | Chain/Ring | Each | |
4 | 3.41"-4.25" | 3 1/4" | 6 1/2" | 13 | 30 | 30 | -20° to 125° | Natural Rubber | Zinc-Plated Steel | 000000 | 000000 |
Air-Inflatable Plugs with Bypass
Conform to wide and out-of-round pipes with these inflatable plugs. Also known as pneumatic plugs, they're designed for temporary seals since they can lose pressure over time. Use the bypass tube on these plugs to add air, water, and other fluid to your pipeline or to relieve pressure while testing. Inflate with a hand pump (sold separately); an air compressor may overinflate the plug and cause damage. Tether the plugs using either the eyebolt or chain/ring so they don't get lost or stuck in your pipes. Maximum air back pressure is the amount of pressure a plug can withstand without moving. Maximum water back pressure refers to the pressure resulting from the height of the water above the plug.

For Pipe | Deflated | Max. Back Pressure | Bypass | Material | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Size | ID | Dia. | Ht. | Air, psi | Water, ft. of head | Required Inflation Pressure, psi | Pipe Size | Thread Type | Gender | Temp. Range, °F | Seal | Eyebolt | Each | |
4 | 3.25"-4.25" | 3 1/8" | 8" | 22 | 50 | 40 | 3/4 | NPT | Female | -20° to 125° | Natural Rubber | Zinc-Plated Steel | 0000000 | 0000000 |
Deep-Reach Wing Nut Expansion Plugs

Plate With
Brass Stem

Insert these plugs deep within your pipe to seal it off from the inside. Maximum air back pressure is the amount of pressure a plug can withstand without moving. Maximum water back pressure refers to the pressure resulting from the height of the water above the plug.
For technical drawings and 3-D models, click on a part number.
Snap-In Pipe and Tubing Grommets


These grommets have two flanges that snap around holes and flex to compensate for misalignment and movement of pipe and tubing. They're often used for routing applications in panel walls. Made of plastic, these grommets are chemical resistant and won't dry out and become brittle when exposed to UV rays. All have a medium-hard rating to withstand high levels of impact. They can be used outdoors.
For technical drawings and 3-D models, click on a part number.
For Hole Dia. (A) | For OD | For Pipe Size | For Material Thick. (B) | ID (C) | Flange Dia. (D) | Overall Ht. (E) | Hardness Rating | Hardness | Temp. Range, °F | For Use Outdoors | Color | Each | |
Vinyl Plastic | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
6 1/4" | 4.5"-4.62" | 4 | 0.05"-0.18" | 4 1/4" | 6 3/4" | 1.06" | Medium Hard | Durometer 60A | -40° to 200° | Yes | Black | 00000000 | 000000 |
Push-In Pipe and Tubing Grommets


Press these flexible grommets into holes and their tapered inner wall will expand when pipe or tubing is inserted to hold them snugly in place. They're often used for routing applications on metal, plastic, and fiberglass tanks. Made of plastic, these grommets are chemical resistant and won't dry out and become brittle when exposed to UV rays. All have a hard rating to withstand high levels of impact. They can be used outdoors.
For technical drawings and 3-D models, click on a part number.
For Hole Dia. (A) | For OD | For Pipe Size | For Material Thick. (B) | ID (C) | Flange Dia. (D) | Overall Ht. (E) | Hardness Rating | Hardness | Temp. Range, °F | For Use Outdoors | Color | Each | |
Vinyl Plastic | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
4 7/8" | 4.22" | 4 | 1/2" | 3.837" | 5.88" | 0.78" | Hard | Durometer 75A | -20° to 160° | Yes | Black | 0000000 | 000000 |
4 7/8" | 4 1/2" | 4 | 3/8" | 4.192" | 5.84" | 0.76" | Hard | Durometer 75A | -20° to 160° | Yes | Black | 0000000 | 00000 |
Cleanout Plugs



Close off your drain cleanout pipe with these threaded plugs. Note: If you do not know your pipe size, measure the OD of your existing cleanout plug or the ID of your cleanout fitting and match to the value listed.
Drain Pipe 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.
For Pipe | Max. Back Pressure | |||||||
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Size | OD | Water, ft. of head | Air | Temp. Range | Material | Clamp Material | Each | |
4 | 4.31"-4.50" | 10 | Not Rated | Not Rated | Neoprene Rubber | Stainless Steel | 0000000 | 00000 |
Floor Drain Backflow Preventers

Put an end to water damage from backed-up sewers. To install, place a preventer into your floor drain pipe and tighten the screws—the rubber collar will expand for proper fit. When water backs up, the rubber float will rise to seal off the drain. When water recedes, the float will drop for normal drainage.
For Pipe Size | Each | |
4 | 0000000 | 000000 |