Source scope, not presumed equivalence
Where was the trimmer sold?
The same model label can lead to different manuals, bundles, head assemblies, or regional specifications. We list the geographic scope of the source alongside each result and leave missing regions unresolved.
Canada is a separate evidence check. Husqvarna’s Canada 122L page and support page confirm the T25 (L), SKU 970 79 61-02, and manuals in English and French. They do not expose the US page’s line-size FAQ, so this lookup does not apply the US 0.065 / 0.080 / 0.095 inch list to a Canadian 122L.
Current documented coverage
| Region | Covered models and evidence | Known boundary |
|---|---|---|
| United States | STIHL FSA 57, FSA 60 R, FS 56; Husqvarna 122L and 330LK; Greenworks ST60L254 and ST60L413; EGO US models under North American manuals. | STIHL model sources expose multiple heads. Choose the installed head, not just the model. Husqvarna 330LK page currently recommends 0.095 in, while the support list names RapidReplace for a specific SKU. |
| Canada | Husqvarna 122LK current Canadian FAQ; Husqvarna 122L Canadian product/support pages; EGO ST1510T, ST1520, STX3800 manuals identified as North American. | Husqvarna 122L Canadian source confirms model/head but not the same diameters as US. No Greenworks Canada spec has been added to this index yet. |
| North America manual | EGO ST1510T / ST1510T-FC, ST1520 / ST1520S, and STX3800 records use manufacturer manuals scoped to North America. | A North American manual is valid only for model numbers, head configuration, and revision printed in that manual. |
| Other / unknown | No sourced fitment record in this preview. | Use the exact-market manual and dealer/manufacturer support. Do not use a nearby country’s result as a fallback. |
Regional source index
- Husqvarna US 122L FAQ — 0.065 / 0.080 / 0.095 in, best performance recommendation 0.095 in.
- Husqvarna Canada 122L page — T25 (L), SKU 970 79 61-02.
- Husqvarna Canada 122L manuals — current operator manual in EN/FR.
- Husqvarna Canada 122LK FAQ — 0.080–0.095 in TrimForce or Titanium Force line.
- STIHL US manual search — confirm the current revision by exact model.
For French-language Canadian product support: see the Husqvarna Canada French product page and the French support/manual page. This site’s French-Canadian guide is still awaiting technical-language review.
Last checked October 19, 2026. Source scope is recorded per entry. It does not mean every SKU, serial range, or aftermarket replacement head is covered.