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RIDGID 31100 Model 818 Aluminum Straight Pipe Wrench, 18-inch Plumbing Wrench

  • Based on 1,448 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon

Arrives Wednesday, Jun 24
Order within 19 hours and 9 minutes
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Size: 18"


Style: Pipe Wrench


Features

  • Nearly 40% lighter than heavy-duty models of the same size, this professional-strength aluminum wrench offers comparable durability and ease of use
  • I-beam handle with full floating forged hook jaw for superior gripping and quick adjustments
  • Plumbing wrench has a non-stick adjustment nut, and self-cleaning threads with easily replaceable hook jaw, heel jaw, and spring assembly
  • Straight pipe wrench is suitable for all types of pipe work
  • 18-inch (450 mm) pipe wrenches are ideal for pipe diameters of 1 inch (25 mm) to 2 inch (50 mm) with a pipe capacity of up to 2-1/2 inches (65 mm)
  • 40% lighter than comparable cast-iron models of the same size
  • I-beam handle with full floating forged hook jaw
  • Non-stick adjustment nut
  • Includes special hook and heel jaws for plastic coated pipe
  • 2 1/2 inch capacity

Description

Experience strength and durability with a wrench unlike any other, the 18-inch RIDGID Aluminum Straight Pipe Wrench (catalog number 31100, model 818). Built to perform in the harshest jobsite conditions, this 18-inch straight pipe wrench accommodates all forms of pipe work with strength and accuracy with a pipe capacity of 2-1/2 inches. The full-floating forged alloy steel hook jaws provide maximum gripping power and quick ratcheting action during pipe adjustment jobs. Designed for ease of operation, the wrench features convenient self-cleaning threads as well as easily and quickly replaceable hook jaws, heel jaws, and spring assemblies. Constructed with high-quality aluminum and an easy to hold I-beam handle, it provides long- lasting strength and durability that can withstand heavy-duty and long-term use. This lightweight aluminum pipe wrench weighs only 3-3/4 pounds, making it approximately forty percent lighter than heavy-duty models while still offering all the same benefits. RIDGID is a global manufacturer of more than 300 dependable and innovative tools, trusted by the skilled trades in more than 100 countries. RIDGID products are purpose built for professionals in the evolving commercial, industrial and energy markets who install and maintain the world's infrastructure. BUILT FOR THOSE WHO KNOW.® From the Manufacturer Aluminum Straight Handle Pipe Wrench. Sturdy housing and I-beam handle with full floating hook jaw, non-stick adjustment nut and replaceable hook and heel jaws. These Aluminum pipe wrenches are nearly 40% lighter than comparable cast-iron models of the same size. Pipe capacity: 2-1/2 . Weight: 3-3/4 lbs.

Color: Factory


Brand: RIDGID


Material: aluminium


Item Length: 18 Inches


Item Weight: 3.8 Pounds


Head Style: C Shaped


Item Torque: 150 Foot Pounds


Operation Mode: Mechanical


Is Non Sparking: No


End Style: Adjustable


Measurement Standard: SAE (Inch)


Wrench Length Style: Standard


Material Type: aluminium


Finish Types: Aluminum & Steel


Color: Factory


Item Length: 18 Inches


Item Weight: 3.8 Pounds


Package Quantity: 1


Jaw Capacity: 2.5 Inches


Brand Name: RIDGID


Model Number: 31100


Manufacturer: Ridgid Tool Company


UPC: 095691311009


Global Trade Identification Number: 09


Manufacturer Part Number: 31100


Item Type Name: 31100


Unit Count: 1.0 Count


Manufacturer Warranty Description: Manufacturer


Included Components: 31100


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, Jun 24

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • Rigid all the way!
Size: 36" Style: Wrench
Im a Union Pipefitter & turning wrench is a must. I have a Reed 4'er & I wish it was a Rigid. Best jaw, bite and durable. When it comes to pipe wrench there is no other choice in my opinion
Reviewed in the United States on August 15, 2025 by Paul O

  • Ridgid pipe wrenches are the best
Size: 36" Style: Wrench
Nothing beats a Ridgid pipe wrench. Grabs on to the pipe tight without any slippage
Reviewed in the United States on August 18, 2025 by Amazon Buyer

  • It works!
Size: 18" Style: Pipe Wrench
Wow! I had heard about Ridgid tools for a long time; this was my first experience with a Ridgid pipe wrench - why did I wait so long?? The aluminum is so much lighter than the steel, yet it still is strongly made. No one has to be concerned that the wrench won't be strong enough to do the job. Quality is exceptional - there are no clunky or stuck parts in any of the pieces. Worth every penny to have this wrench for use. Thank you, Ridgid, for making such an excellent wrench! ... show more
Reviewed in the United States on March 25, 2022 by SES53

  • Pipe wrench
Size: 18" Style: Pipe Wrench
It’s a Rigid so that speaks for itself! Best pipe wrench you can get in my opinion!
Reviewed in the United States on May 20, 2026 by Nookie

  • Best wrench hands down
Size: 18" Style: Pipe Wrench
I bought this as i had run out of options to remove a broken cylinder from a humanscale chair. I tried taping it for traction and had used a bunch of various Knipex wrenches, etc but they all kept losing grip and spinning on the cylinder. I bought this bad boy, torqued it up and the teeth really bit into the solid steel cylinder and spun it out of the housing (not without it's challenge though, the thing was VERY jammed into the body of the chair supports). This is the best wrench I've ever used, EVER. ... show more
Reviewed in the United States on February 12, 2023 by Jerbish Daniels

  • Light weight perfect wrench Light weight perfect wrench
Size: 18" Style: Pipe Wrench
A must have pipe wrench. Hold up great. Grabs pipes like a champ. Strong an light weight. Ridge is the way to go for pipe wrenches. Teeth are sharp an are still sharp after years of use. Trustworthy and durable. Would highly recommend. Its nice not to have to pack around a heavy iron pipe wrench. An have put it to the test wrenching on old rusted pipes. Well built wrench. I'm happy with purchasing this wrench well worth the money spent on it. Product features The RIDGID® 18-inch aluminum pipe wrench is designed almost any type of pipe work a professional or DIY homeowner has to do. It's made from aluminum and weighs only 3.75 pounds, which means it is approximately 40 percent lighter than 18-inch cast-iron wrenches, which reduces fatigue from using it for a long time. Its average 18-inch length makes it possible to store the wrench easily in most common-sized tool boxes as well. This aluminum straight pipe wrench can be used on any pipe with a capacity of up to 2.5 inches. It's compatible with special heel jaws and hooks, which allow it to work with softer plastic-coated pipes. Since it's made from aluminum this wrench is immune to rust and many other types of corrosion. Additional Features Ridgid aluminum pipe wrench helps loosen or secure pipe nuts Made from aluminum and weighs 40% less than cast-iron counterparts Aluminum straight pipe wrench fits in most tool boxes Maximum pipe capacity of 2.5 inches Ridgid 18-inch pipe wrench is compatible with hooks and heel jaws designed for use with plastic-coated pipe Aluminum construction is resistant to corrosion and immune to rust Lifetime warranty, Made in the USA ... show more
Reviewed in the United States on July 23, 2016 Reviewed in the United States on July 23, 2016 by Obe_one7

  • 😁
Size: 18" Style: Pipe Wrench
He’s happy! Good quality but spendy .
Reviewed in the United States on March 2, 2026 by vickie

  • Ridgid
Size: 18" Style: Pipe Wrench
High quality as you expect from ridgid. I don't like the cost but ya certainly get what ya pay for.
Reviewed in the United States on February 4, 2025 by Perry's Pump Repair

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