Internet #100662015

Model #SRM-225U

Store SO SKU #1000579224

21.2 cc Gas 2-Stroke Cycle Brush Cutter Trimmer

  • ECHO SRM-225U is a great tool for clearing thick grass & brush
  • Ability to convert to a bladed brush saw with a conversion kit
  • Brush saw has a shoulder harness for maximum comfort and mobility
  • See More Details

Frequently Bought Together


Product Overview

Work through the thickest of tangles with this ECHO gas brush cutter. This hand held brush cutter is lightweight, easy to use and starts quickly. The offset U-handle with stop switch and throttle lock out delivers maximum operational control and user comfort. A shoulder harness is also included to increase your mobility during the operation of the brush saw. This grass cutter converts easily to a blade that's ideal for demanding cutting applications. All ECHO brush cutter trimmer engines are certified with the highest EPA engine durability rating.
  • California residents
  • Use a 50:1 ratio of fuel to oil mix for 2-stroke cycle engines, recommend using only fresh gas with a minimum octane rating of 89 or higher (mid-grade to premium) at all times
  • 50:1 ratio equal 1 US Gal. 89 octane plus 2.6 fl. oz. ECHO PowerBlend gold oil or ECHO red armor oil
  • 17 in. cutting width makes quick work of difficult trimming
  • Brush cutter trimmer features a 21.2 cc professional-grade 2-stroke engine
  • i-30 starting system reduces starting effort by 30%
  • Brush cutter comes with a 5-year consumer/2-year commercial warranty
  • Offset U-handle with stop switch and throttle lock out
  • Speed-Feed 400 trimmer head reloads in seconds without tools or disassembly
  • Strong performance in a lightweight design
  • Stop switch and throttle lock-out keep you in control
  • 59 in. straight shaft helps you a access to hard-to-reach areas
  • Anti-vibration design helps provide extended use
  • Partial assembly required
  • Included shoulder harness lends added comfort and control during operation

  • Shop Echo Gas Chainsaws Here

Info & Guides

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Name25cc 2-Cycle Full Crank Gas Brush Cutter21.2 cc Gas 2-Stroke Cycle Brush Cutter Trimmer25.4 cc Gas 2-Stroke Cycle Brush Cutter Trimmer30.5 cc Gas 2-Stroke Cycle U-Handle Brush Cutter
Power TypeGasGasGasGas
CA (CARB) CompliantCARB CompliantCARB CompliantCARB CompliantCARB Compliant
Blade MaterialSteelPlasticPlasticPlastic
View ProductView ProductView ProductView Product



Assembled Depth (in.)
72.3 in
Assembled Height (in.)
11.4 in
Assembled Width (in.)
13.1 in
Blade Diameter
Maximum cutting path diameter (in.)
Shaft Length (in.)


Assembly Required
Blade Diameter (in.)
Blade Material
CA (CARB) Compliant
CARB Compliant
Engine Displacement (cc)
Engine Type
2 cycle
Antivibration,Automatic Line-Advance System,Straight Shaft,Translucent Fuel Tank
Conversion Kit,Shoulder Harness/Strap
Number of teeth on blade
Oil Capacity (oz.)
Power Type
Product Weight (lb.)
Recommended Oil Type
Red Armor 2-Stroke Engine Oil
Start Type
Trimmer Type
Hand Held

Warranty / Certifications

Manufacturer Warranty
5-year consumer / 2-year commercial

Questions & Answers


Does it need oil mix for gasoline ?

Asked by Rob January 2, 2019

A 50:1 ratio with 89 through 93 Octane fuel can be used in all ECHO 2-stroke equipment, provided the oil is ISO-L-EGD and JASO M345 FD certified. ISO-L-EGD and JASO M345 FD oil must be used with a mid-grade (89 octane) or premium (93 octane) gasoline in all 1997 and newer engines. A 50:1 Ratio = 1 US Gal. 89 Octane + 2.6 fl. oz. ECHO PowerBlend® Oil or ECHO Red Armor® Oil.

the shield is it metal or plastic?

Asked by Bro October 10, 2017

The debris shield for the SRM-225U is plastic.

Can i get the price in rands

Asked by KCK July 12, 2017

Hello KCK, Please use a currency converter to calculate pricing. Thank you for your inquiry. Keep in mind that all prices are in US dollars.

Can a metal trimmer head be attached? I think the alloy metal? Like most found in Asia?

Asked by frank July 6, 2017

ECHO offers the Fixed Line Trimmer Head, Part #99944200220, which is a metal head. Please visit,, to view all available trimmer heads that ECHO offers.

Can the handle bar and throttle be moved to the opposite offsetting for use by left hand people?

Asked by Rodney June 27, 2017

All ECHO products are designed for right hand operation. We do not recommend to modify the ECHO products as it will void any warranty.

Can a blade for thicker trimming be attached?

Asked by Junior September 19, 2016

The SRM-225U comes standard with a trimmer head. However, a meal blade can be used with this model. To view the available metal blades for this model, please copy and paste the following web address into your web browser;

8 in. x 8-Tooth Grass Blade

Asked by JoeG February 5, 2016

In order to add a metal blade onto the SRM-225U, the Blade Conversion Kit would need to be purchased, #99944200418. The kit will include a shoulder harness, metal shield and blade adapter. The following metal blades are available, 99944200047 - Three Cutter Metal Blade (20mm) - ECHO three-cutter blades are specially designed to cut brush, shrubs and grass. 69500120331 - 8" 80 Tooth Brush Blade (20mm Arbor) - Designed for material up to 2.5" in diameter depending on the material being cut and the condition of the blade. 69600120331 - 8" 8 Tooth Grass and Weed Blade (20mm Arbor) - Designed for grass, garden debris and thick weeds.99944200131 - 22 Tooth Clearing Saw Blade (20mm Arbor) - For use on thick saplings and dense thicket up to 2-1/2" in diameter.

dose load xq line

Asked by johnny October 12, 2013

The SRM-225U will take .080 - .105 nylon trimmer line.

does this package include a rapid feed weedeater head?

Asked by Unsure July 25, 2012


What is an I-30 Start Up?

Asked by Arch September 24, 2011

The i-30™ starting technology is a spring assisted starter assembly that reduces the effort normally required to pull start the engine by 30%.

21.2 cc Gas 2-Stroke Cycle Brush Cutter Trimmer - page 2

Customer Reviews

  • 40 Customer Reviews
  • 4.5 out of 5 stars overall
83% of customers recommended.
Overall Ratings
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Rating provided by a verified purchaser...
Rating provided by a verified purchaser
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Definitely would not buy this again. It works fine, if...
Definitely would not buy this again. It works fine, if you can get it started. It took a while to discover that I have to take the spark plug out and put it back in to get it to start cold. I know 2-strokes can be finicky, but this one is down rough hornry. Overall, adequate brush cutter with a poor engine. Other brands must work as well and start more easily.
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Hollis, NH
Needs a scythe
Customer review from logo
As a string trimmer and saw blade, the unit is very good. But to cut weed growth like runners, a scythe (as in a hedge trimmer) is necessary.
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Customer review from logo
This is my second 225 the first now at my home and the new one at my rural property. Both great machines!
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No Customer Service
Features :
Quality :
Value :
I purchased an SRM 225U on June 3. The included harness was missing. Instead there was a shoulder strap with no shoulder pad that was not only incomfrtable but cut into my neck while wearing it. I tried calling customer service over the next few days but was placed on a forever hold. So I sent an email. A week later I get a response that I was in error. It doesn't come with a harness. I responded by copying the text of the ad which clearly states that it comes with a harness and asked for ECHO to honeor the ad and supply the harness. I never heard back. This brush-cutter/trimmer is almost $100 more than an equivalent Husqvarna or Stihl. I assumed it was because of the included harness. It is a heavy machine and requires a harness to use. I would not recommend ECHO.
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I love this weed eater. It starts easy
I love this weed eater. It starts easy
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New Mexico
Easy to work with
Customer review from logo
Need a little more power , will go get it serviced
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This tool has exceeded my expectations!...
This tool has exceeded my expectations!
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Fast shipping and very good quality......Just like my other Echo...
Fast shipping and very good quality......Just like my other Echo products
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Milton FL
Great for Clearing Thickets and Saplings
Customer review from logo
This tough machine is perfect for me to finally clear a vacant lot I have owned for 15 years in the FLA Panhandle. It is heavily wooded with thick undergrowth, tangles of briars, thick vines and numerous types of young 1" to 4" diameter trees. (The bigger ones, I cut around on both sides to bring them down...nice and low to the ground with no stumps.) String trimmers can't cut through this stuff. Chain saws do, but you can't reach in to the middle of thickets to reach central stalks without hours of using hand tools tediously cutting brush and getting scratched up. This rips through everything in the way. I had to make some changes to the basic kit for max performance for this job. Tried two different blades and found a carbon tipped blade, similar to a wood ripping blade, that works best. I also upgraded the harness to double-shoulder style straps for greater stability and comfort. For me, this machine performs like a champ. Like all Echo products, it is easy to start and runs smooth. I love it. When this job is done, I'll switch back to a brush-cutter blade for low brush maintenace which is very easy and fast to do. Great machine!
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