Best Trimmer Head Under $20 (2026): 5 Picks Compared
Five trimmer heads under $20 compared: Speed Feed and 25-2 bump feed heads for Echo and Stihl trimmers, with feed type, fit, line size and max speed from each listing.
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Top picks at a glance
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- 1
Best OverallEnvanptaz STH-002 2-Pack9.6/10View on Amazon - 2
Best Stihl FitAILEETE 25-2 Stihl Head9.5/10View on Amazon - 3
Best Echo FitEnvanptaz STH-0019.5/10View on Amazon - 4
Best EasySpoolBuckbock AutoCut 25-29.5/10View on Amazon - 5
25-2 Trimmer Head for Stihl FS55 FS55R FS56 FS56RC FS70 FS70RView on Amazon - 6
PT104 Trimmer Head for Redmax TR2350S Weedeater ReplaceView on Amazon - 7
C26-2 Trimmer Head for Stihl FS55 FS55R FS56 FS56RC FS70View on Amazon - 8
C26-2 Dual Line Stihl Speed Feed Trimmer Head with 0.095” LineView on Amazon - 9
3 Pack String Trimmer Head compatible for Echo Speed Feed 400View on Amazon
The fencerow along the back pasture tells you when the trimmer head is done: the line stops feeding, the head clogs with last season’s stems, and a quick pass turns into a wrestling match. A fresh head changes that. The best trimmer head under 20 is a small part that decides whether trimming feels like maintenance or a chore. Five heads are compared below by feed type, fit, line size and stated max speed, using only what each listing publishes.
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Quick picks
- Best Overall Envanptaz STH-002 2-Pack: Two Speed Feed 400 heads, quick line load, stated 10,000 RPM max Check price on Amazon
- Best Stihl Fit AILEETE 25-2 Stihl Head: 25-2 bump feed replacing Stihl OEM 4002 710 2108 and 4002 710 2191 Check price on Amazon
- Best Echo Fit Envanptaz STH-001: Speed Feed 400 for Echo SRM straight-shaft trimmers, 10.4 ounces Check price on Amazon
- Best EasySpool Buckbock AutoCut 25-2: AutoCut 25-2 with no-disassembly line loading Check price on Amazon
Our acreage picks
Envanptaz STH-002 2-Pack Speed Feed 400 Trimmer Head for Echo SRM
Two Speed Feed 400 trimmer heads for Echo SRM straight-shaft trimmers and Shindaiwa models, with quick line load and a stated 10,000 RPM max.
Read the full review
The STH-002 is a 2-pack of Speed Feed 400 trimmer heads for Echo SRM straight-shaft trimmers, also fitting Shindaiwa part numbers 99944200907 and 99944200902 and replacing 78890-30000. The listing states quick line load, a 10,000 RPM max rotate speed and impact-resistant plastic construction. Weight is 1.59 pounds, and the heads do not come with adapters.
Pros
- Two heads in the pack, a spare when one wears out
- Stated 10,000 RPM max rotate speed
- Quick line load for faster restringing
- Fits a wide Echo SRM straight-shaft range plus Shindaiwa models
Cons
- No adapters come with the heads
- Straight-shaft Echo SRM models only, not curved shaft
- No warranty term is stated
- Line diameter the heads take is not stated
Envanptaz STH-001 Speed Feed 400 Trimmer Head for Echo SRM-225
Single Speed Feed 400 trimmer head for Echo SRM straight-shaft trimmers and Shindaiwa models, with quick line load and a stated 10,000 RPM max.
Read the full review
The STH-001 is the single-head version of the Speed Feed 400 for Echo SRM straight-shaft trimmers, fitting the same Shindaiwa part numbers and replacing the same Echo part numbers as the 2-pack. The listing states quick line load, a 10,000 RPM max rotate speed and impact-resistant plastic. Weight is 10.4 ounces, and no adapters are included.
Pros
- 10.4 ounces, the lowest weight here
- Stated 10,000 RPM max rotate speed
- Quick line load for faster restringing
- Fits a wide Echo SRM straight-shaft range plus Shindaiwa models
Cons
- No adapters come with the head
- Straight-shaft Echo SRM models only, not curved shaft
- No warranty term is stated
- Line diameter the head takes is not stated
AILEETE 25-2 Bump Feed Trimmer Head for Stihl FS Series
25-2 bump feed trimmer head replacing Stihl OEM 4002 710 2108 and 4002 710 2191, on a 10mm x 1.0 LHF arbor with a stated 8000 rpm.
Read the full review
The AILEETE is a 25-2 bump feed head for Stihl brushcutters, weed eaters, clearing saws, electric trimmers and Kombi tools, replacing OEM 4002 710 2108 and 4002 710 2191 on a 10mm x 1.0 LHF arbor. The listing states 8000 rpm and a black finish, and the bullets name dozens of fitting FS, FR, FSA and KM models. Weight and warranty are not stated, and the spec table marks several smaller FS models as no data.
Pros
- Replaces two Stihl OEM part numbers, 4002 710 2108 and 4002 710 2191
- Fits a long Stihl FS, FR and KM model list
- Bump feed advances line with a tap on the ground
- Stated 8000 rpm max speed
Cons
- Weight is not stated
- No warranty term is stated
- Line diameter is not stated
- Spec table gives no fit data for the FS38, FS45, FS46, FS40, FS40C and FS50
Buckbock AutoCut 25-2 Trimmer Head for Stihl, EasySpool
AutoCut 25-2 bump feed trimmer head for Stihl trimmers with EasySpool no-disassembly line loading, taking .080, .095 or .105 line.
Read the full review
The Buckbock is an AutoCut 25-2 bump feed head for Stihl brushcutters, clearing saws and electric trimmers, replacing OEM 4002 710 2191 on a 10mm x 1 LHF arbor. The listing states EasySpool loading with no disassembly, heavy-duty plastic construction and .080, .095 or .105 line. Weight is 1 pound. The listing describes it as ideal for both commercial use and residential trimming, and asks the buyer to confirm model and part numbers before purchase.
Pros
- EasySpool line loading needs no disassembly of the head
- Takes .080, .095 or .105 trimmer line
- Fits a wide Stihl FS and FR range
- Replaces Stihl OEM 4002 710 2191
Cons
- Max speed is not stated
- No warranty term is stated
- Listing calls it ideal for commercial use and also for residential trimming
- Buyer must confirm engine model and part numbers before purchase
Kizut FS55R 25-2 AutoCut Trimmer Head for Stihl
25-2 AutoCut trimmer head for Stihl with tap-to-feed auto line advance, taking .080, .095 or .105 line on a 10mm x 1.0 LHF arbor.
Read the full review
The Kizut is a 25-2 AutoCut head for Stihl FS and KM trimmers with tap-activated auto-feed: bumping the head on the ground advances the line. It takes .080, .095 or .105 line on a 10mm x 1.0 LHF arbor and replaces 25-2, 4002 710 2191 and 4002 710 2108. Weight is 1 pound. One bullet misspells the brand as STHIL, and max speed and warranty are not stated.
Pros
- Tap-to-feed auto line advance by bumping the head
- Takes .080, .095 or .105 trimmer line
- Replaces 25-2, 4002 710 2191 and 4002 710 2108
- 1 lb, tied for the lowest weight among the Stihl-fit heads
Cons
- Max speed is not stated
- No warranty term is stated
- Bullets misspell the brand as STHIL once
- Line advance needs a bump on the ground each time
Other machines to compare
25-2 Trimmer Head for Stihl FS55 FS55R FS56 FS56RC FS70 FS70RCheck price on Amazon
PT104 Trimmer Head for Redmax TR2350S Weedeater ReplaceCheck price on Amazon
C26-2 Trimmer Head for Stihl FS55 FS55R FS56 FS56RC FS70Check price on Amazon
C26-2 Dual Line Stihl Speed Feed Trimmer Head with 0.095” LineCheck price on Amazon
3 Pack String Trimmer Head compatible for Echo Speed Feed 400Check price on Amazon
Side-by-side specs
| Model | Acre Score | Feed type | Fits | Line size | Max speed | Weight | Warranty |
|---|---|---|---|---|---|---|---|
| Envanptaz STH-002 2-Pack | 9.6/10 | Speed Feed, quick load | Echo SRM, Shindaiwa | Not stated | 10,000 RPM | 1.59 lb | Not stated |
| Envanptaz STH-001 | 9.5/10 | Speed Feed, quick load | Echo SRM, Shindaiwa | Not stated | 10,000 RPM | 10.4 oz | Not stated |
| AILEETE 25-2 Stihl Head | 9.5/10 | 25-2 bump feed | Stihl FS, FR, KM | Not stated | 8000 rpm | Not stated | Not stated |
| Buckbock AutoCut 25-2 | 9.5/10 | Bump feed, EasySpool | Stihl FS, FR | .080, .095, .105 | Not stated | 1 lb | Not stated |
| Kizut FS55R 25-2 | 9.4/10 | Tap-to-feed auto | Stihl FS | .080, .095, .105 | Not stated | 1 lb | Not stated |
Specifications are manufacturer rated as listed, collected 23 October 2026.
Acreage and terrain fit
Envanptaz STH-002 2-Pack
Envanptaz STH-001
AILEETE 25-2 Stihl Head
Buckbock AutoCut 25-2
Kizut FS55R 25-2
How the picks are scored
The Acre Score weighs five factors: performance (feed type, fit range, stated max speed), build (materials and construction), value (what the listing includes), safety (stated protections or certifications) and warranty (stated term and coverage). A factor the listing does not state scores zero. None of these listings states a safety certification or a warranty term, so safety and warranty score zero across the board.
| Product | Acre Score | Perf. /35 | Build /25 | Value /25 | Safety /10 | Warranty /5 |
|---|---|---|---|---|---|---|
| Envanptaz STH-002 2-Pack | 9.6 | 30 | 20 | 22 | n/a | 0 |
| Envanptaz STH-001 | 9.5 | 29 | 20 | 19 | n/a | 0 |
| AILEETE 25-2 Stihl Head | 9.5 | 29 | 19 | 19 | n/a | 0 |
| Buckbock AutoCut 25-2 | 9.5 | 28 | 19 | 18 | n/a | 0 |
| Kizut FS55R 25-2 | 9.4 | 27 | 18 | 18 | n/a | 0 |
Scores run from 9.2 to 9.8: each product’s point total is placed on that range, so more points always means a higher score. Safety counts only for powered gear or where the listing states safety features; where it does not apply, the score is taken over the remaining 90 points.
How to choose the best trimmer head under 20
Bump feed, tap-to-feed or Speed Feed
The 25-2 heads from AILEETE and Buckbock are bump feed: tap the head on the ground and the line advances. The Kizut uses tap-to-feed auto advance the same way. The Envanptaz heads are Speed Feed 400 with quick line load, and the Buckbock adds EasySpool loading with no disassembly of the head.
Match the head to your trimmer
The 25-2 heads replace Stihl OEM 4002 710 2108 and 4002 710 2191 and mount on a 10mm x 1.0 LHF arbor across the Stihl FS, FR and KM ranges. The Envanptaz heads fit Echo SRM straight-shaft trimmers and Shindaiwa models, come with no adapters, and do not fit curved-shaft trimmers. Check the arbor and the shaft before ordering. For grass-only work, see the best trimmer head for grass roundup.
Line size and max speed
The Kizut and Buckbock list .080, .095 or .105 line; the other listings do not state a line size. On speed, the Envanptaz heads state 10,000 RPM max and the AILEETE states 8000 rpm, while the Kizut and Buckbock state no max speed. Match the head’s stated speed to your trimmer, and pick line to match in the best string trimmer line for commercial use guide.
Weight and what comes in the box
Weights run from 10.4 ounces for the single Envanptaz head to 1.59 pounds for the 2-pack, with the Kizut and Buckbock at 1 pound and the AILEETE not stating a weight. The 2-pack is the only pick that includes a spare.
Wear eye and hearing protection, long pants and sturdy footwear, and keep bystanders well back while the line or blade spins. Clear stones and debris first, and stop the engine or remove the battery before clearing the head. Refuel only with the engine off and cool. See OSHA landscaping safety. Read our Safety Disclaimer.
Matching It to Your Property
- For fencerows and ditch banks, the 25-2 bump feed heads advance line with a tap on the ground.
- For long edges where restringing eats time, the Speed Feed quick line load and EasySpool no-disassembly heads cut the fiddling.
- For a trimmer that rides in the truck bed, the 2-pack keeps a spare head ready.
- For Echo SRM straight-shaft owners, the Envanptaz heads fit the shaft; for Stihl FS owners, the 25-2 heads fit the 10mm x 1.0 LHF arbor.
FAQ: mowing large lots
What is a 25-2 trimmer head?
The 25-2 is the head size class these Stihl-fit heads replace: OEM 4002 710 2108 and 4002 710 2191, mounting on a 10mm x 1.0 LHF arbor across the Stihl FS, FR and KM ranges.
Will these heads fit an Echo trimmer?
The Envanptaz heads fit Echo SRM straight-shaft trimmers and Shindaiwa models. They do not fit curved-shaft trimmers, and no adapters are included.
What is the difference between bump feed and Speed Feed?
Bump feed advances the line when you tap the head on the ground; the Speed Feed 400 heads use a quick line load system. The Kizut uses tap-to-feed auto advance.
What line size do these heads take?
The Kizut and Buckbock list .080, .095 or .105 line. The AILEETE and Envanptaz listings do not state a line size.
Are tools needed to change the line?
The Buckbock EasySpool loads with no disassembly of the head, and the Envanptaz heads use quick line load. The bump feed heads advance line with a tap, no tools needed.
