Ridgid Pipe Wrenches: Models, Specs, and Pricing
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Ridgid invented the modern pipe wrench in 1923 and still makes the one most plumbers reach for. Their Model 18 cast-iron wrench is the default 18" pipe wrench in the trades. The aluminum E-918 saves 40% weight when you're working overhead.
Ridgid N/A (manual tool) Platform
Manual pipe wrench. No batteries, no electronics. These tools last decades with minimal maintenance. Oil the adjustment nut occasionally.
Current Models
Ridgid Model 18
31020
The original. Cast iron body, forged jaw. It's the pipe wrench everyone else copies.
Ridgid E-918
90122
Aluminum body, same forged jaw. 40% lighter than cast iron. Worth the $9 premium for overhead work.
Specs at a Glance
| Spec | 31020 | 90122 |
|---|---|---|
| length | 18" | 18" |
| capacity | 2-1/2" pipe | 2-1/2" pipe |
| material | Cast iron | Aluminum |
| weight | 5.5 lbs | 3.3 lbs |
| jaw | Forged alloy steel | Forged alloy steel |
| Price | $56 | $65 |
Frequently Asked Questions
Cast iron or aluminum pipe wrench?
For a bench or floor-level work, cast iron is fine and cheaper. For overhead work (water heaters, ceiling pipes), the aluminum saves 2 lbs per hand, which matters after an hour.
What size pipe wrench do I need?
An 18" wrench handles up to 2-1/2" pipe, which covers most residential plumbing. A 14" is enough for 3/4" and 1" copper. For 3" and 4" drain pipe, step up to a 24".