BLACK+DECKER AF-100-3ZP String Trimmer Replacement Spool with 30 Feet of .065-Inch Line

What It Is

The BLACK+DECKER AF-100-3ZP is a pre-wound replacement spool for string trimmers, holding 30 feet of 0.065-inch line. It’s designed for light to medium-duty trimming around lawns, edges, and gardens.

Fitment & Compatibility

• Model check: This spool fits most BLACK+DECKER grass trimmers and edgers that use the AF-100 series spool, including the GH900, GH910, GH912, GH3000/NST2118, and LST136/140/300/400 models. It does not work with older spools like the AF-100-2 or AF-100-4 (different line diameter or spool shape).
• Line size: 0.065-inch line is for lightweight trimming. Do not use on trimmers requiring 0.080-inch or thicker line—it will snap or underperform.
• OEM vs aftermarket: This is an OEM BLACK+DECKER part, so fit and performance are guaranteed. Aftermarket spools may be cheaper but often have looser winding or different hub dimensions.
• What to check before buying: Verify your trimmer’s model number (on the housing or manual) and confirm it uses the AF-100 spool. Also ensure your trimmer’s line diameter spec is 0.065 inches—check the manual or existing spool.

Key Things to Know

• Quality: Pre-wound evenly and snaps into place with minimal fuss. Line is durable for grass and light weeds but won’t handle thick brush or stony areas.
• Installation difficulty: Very easy—pop out the old spool, align the new one with the bump head, and push until it clicks. No tools needed. First-timers should watch a quick video to avoid tangling.
• Common gotcha: The spool may not engage if the line isn’t fed through the eyelets correctly. Always thread the line through the exit holes before snapping the spool closed.
• Line life: 30 feet is enough for 1–2 full trims on a typical lawn. Keep a spare on hand for heavy use.

Should You Buy It

Buy this if you own a compatible BLACK+DECKER trimmer and want a hassle-free, OEM replacement for light trimming. It’s reliable, easy to install, and priced fairly. Skip it if you need thicker line for heavy-duty work, or if your trimmer uses a different spool series.