Garrett AT 9 x 12 inch PROformance Concentric Coil Kit with Cover, Lower Rod and Hardware

The Garrett AT 9 x 12 inch PROformance concentric kit packs Garrett's 9 x 12 inch (23 x 30 cm) elliptical concentric coil, part 2222700, with a coil cover, lower rod and mounting hardware for the Garrett AT Pro, AT Gold and AT Max. Garrett built the large format coil for deeper detection depth and more terrain with each sweep.

What is in the box with the Garrett AT 9 x 12 inch PROformance Concentric kit

Garrett's standard contents for the AT 9 x 12 inch PROformance Concentric (Garrett part 2222700)

• Garrett AT 9 x 12 inch PROformance concentric search coil
• 9 x 12 inch coil cover

This AT 9 x 12 inch PROformance Concentric kit also includes

• An extra Garrett 9 x 12 inch coil cover
• Garrett lower rod (shaft)
• Mounting hardware: bolt, washers and nut

Which detectors the AT 9 x 12 inch PROformance Concentric fits

• Garrett AT Pro
• Garrett AT Max
• Garrett AT Gold

Garrett designed the AT 9 x 12 inch PROformance concentric coil to work with the AT Pro, AT Gold and AT Max.

When to use the AT 9 x 12 inch PROformance Concentric

Garrett says the 9 x 12 inch coil provides approximately 20 to 25% more detection depth on coin-sized targets than other AT series coils of 9 to 10 inch size, and broader ground coverage per sweep than smaller coils. Its concentric format gives a large detection field and helps ignore bottle caps and other iron trash, and the symmetrical field eases pinpointing and keeps target identification consistent.

We would put the 9 x 12 inch on clean lawns, sports fields and open ground where the 6.5 x 9 inch feels narrow, and grid the area with overlapping passes. It is awkward around obstacles, so we would drop to a smaller coil where trash or iron thickens. Garrett's AT 5 x 8 inch PROformance DD coil is the partner for those sites. Garrett calls it ideal for tight spaces, rocks and trashy areas, and it fits the same three AT detectors. Size alone does not make a concentric coil better than a DD on mineralized soil; for that ground, Garrett credits its DD coils such as the 8.5 x 11 inch Raider with smooth operation. The entire coil can be submerged in lakes, streams and oceans, and Garrett rates the AT Pro, AT Gold and AT Max waterproof to 10 feet (3 m). On the lower rod, snug the bolt enough to hold the coil angle without overtightening the coil's mounting ears. Our metal detector coil guide explains how coil size and type trade coverage for separation.

Garrett AT 9 x 12 inch PROformance Concentric specifications

Garrett covers its searchcoils with a full 3-year parts and labor warranty. Every coil and accessory we carry for the AT Pro is in our Garrett AT Pro collection.

Serious Detecting is a family-owned, authorized Garrett dealer with a showroom in Ypsilanti, Michigan, and our staff help by phone or email.