Get real answers from outdoor explorers and our product experts. Browse questions about performance, features, and setup — or ask your own to make sure this gear fits your next adventure.
The Garrett AT 8.5 x 11 in PROformance DD Raider (part 2222400) is a submersible double-D search coil for the Garrett AT Pro, Garrett AT Max and Garrett AT Gold. Garrett describes it as the right size for open field searches with good detection depth. This Serious Detecting kit pairs the coil and its cover with a lower rod and mounting hardware, so the coil arrives ready to mount on its own rod.
Who this coil kit is for
This kit is for AT owners who want a mid-size DD coil for parks, fields, beaches and shallow water, either as a replacement for a damaged coil or as a second coil kept on its own lower rod. The DD winding stays steady in mineralized soil and wet salt sand, where a concentric coil of the same size is more likely to get noisy.
For trashy sites, around foundations or in tight spots, a smaller coil such as the AT 5 x 8 in PROformance DD separates close targets better. For covering big open fields faster, the AT 14 x 11 in DD Reaper covers more ground per swing. Both are in our metal detector search coils collection.
Key features and what they mean in the field
- 8.5 x 11 in (21.6 x 27.9 cm) semi-elliptical shape. A good balance of ground coverage and maneuverability, and Garrett's pick for open field searches.
- DD (double-D) winding. Handles mineralized ground and salt sand smoothly and gives a narrow detection footprint that helps with pinpointing.
- Fully submersible. Garrett rates the whole coil for use in lakes, streams and the ocean.
- 1.2 lbs out of the box. Light enough for long sessions on an AT detector.
- 3-year Garrett warranty. Full parts and labor.
What is in the box
Garrett standard contents:
- Garrett AT 8.5 x 11 in PROformance DD Raider search coil (2222400)
- Protective coil cover
Added by Serious Detecting:
- Lower rod
- Mounting hardware: bolt, washers and nut
Compatibility
- Fits: Garrett AT Pro, AT Max and AT Gold
- Does not fit: Garrett ACE series detectors, which use their own 8.5 x 11 in PROformance coil with a different connector. See our Garrett ACE 400 collection for ACE coils.
Where it works well, and where it does not
- Works well: parks, sports fields, plowed fields, beaches and shallow water, where an all-round coil size covers ground at a steady pace.
- Mineralized ground and salt sand: the DD winding keeps the threshold steadier than a concentric coil.
- Less suited: heavy iron trash and tight spots, where a 5 x 8 in coil sees fewer targets at once and fits between obstacles.
How it compares with other Garrett AT coils
- AT 5 x 8 in PROformance DD: smaller and lighter, better target separation in trash, less ground per swing.
- AT 9 x 12 in PROformance Concentric: similar size with a concentric winding, which pinpoints at the coil center but is less stable in mineralized ground.
- AT 14 x 11 in DD Reaper: larger, covers more ground in open fields, heavier on the arm.
Browse all coils and accessories for these detectors in our Garrett collection.
Specifications
- Part number: 2222400
- Size: 8.5 x 11 in (21.6 x 27.9 cm)
- Shape: semi-elliptical
- Winding: DD (double-D)
- Weight: 1.2 lbs out of box
- Submersible: yes
- Warranty: 3 years parts and labor (Garrett)
Customer Questions & Expert Answers
Will the Garrett AT 8.5 x 11 in PROformance DD coil fit an ACE detector?
Why does this Garrett coil kit include a lower rod?
Is the 8.5 x 11 in DD coil a good choice for saltwater beaches?
Customer Reviews & Field Feedback
See what real detectorists and prospectors are saying. Read authentic experiences from the field, discover what users love most, and learn how this product performs in real-world conditions. Share your own review to help fellow explorers choose with confidence.
Recently Viewed Gear
Last products you explored