Minelab 15" x 12" Semi-Elliptical Double-D (DD) Commander Coil for GPX, GP & SD Detectors

The Minelab 15" x 12" Semi-Elliptical Double-D Commander coil is the deep-seeking relic coil in the Commander line — pairing wide 15" x 12" ground coverage with double-D stability and Iron Reject. GPX 5000 and GPX 4500 owners reach for it to sweep colonial homesites, battlefield perimeters, and open cache-hunting fields, punching deep on large targets while holding target separation in iron-dense ground where concentric coils lose stability. It fits the full range of Minelab pulse induction (PI) metal detectors in the GPX, GP, and SD series, and ships genuine from an authorized Minelab dealer with coil cover, mounting hardware, and full manufacturer warranty.

Why GPX & GP Owners Reach for the 15" x 12" DD Commander

• Wider coverage, fewer passes. The 15" x 12" semi-elliptical footprint clears open fields and large relic sites far faster than an 11" coil.
• Deep on big targets. Greater depth penetration on cannonballs, cache containers, and deep relics that smaller coils walk right over.
• Double-D & Iron Reject. The DD winding supports Iron Reject and RX Cancel on GPX models — isolate non-ferrous targets in nail-heavy ground without losing depth.
• Handles mineralization. Punches through red clay and volcanic soil that masks targets on concentric coils. New to ground types? See our coil size, shape & configuration guide.
• Genuine Commander build. Gold-plated plugs, low-noise shielded cable, and multi-strand Litz wire for powerful, low-noise signal transmission.

Best Uses for the 15" x 12" DD Commander Coil

Colonial homesites & battlefield perimeters

The semi-elliptical footprint covers more ground per swing than an 11" coil — critical on a large homesite foundation or a Civil War camp perimeter. The double-D winding handles red clay and volcanic mineralization better than concentric designs, and Iron Reject lets you filter ferrous trash without losing depth on non-ferrous finds. Run a slower sweep and overlap passes ~30% for full coverage. For site ideas, see where to go metal detecting.

Open-field surveys & cache hunting

Covering acres in search of large targets, the 15" x 12" width advantage compounds over a long session. Cache hunters and detectorists working plowed fields clear sections faster while staying sensitive to deep signals. The semi-elliptical shape is easier to control in uneven terrain than a full round coil, and the rugged build shrugs off contact with rocks and roots. Curious how PI depth works? Read how metal detectors work.

Specifications

• Compatibility: Minelab GPX 5000, GPX 4800, GPX 4500, GPX 4000, GP 3500, GP 3000, GP Extreme, SD 2200v2, SD 2200d, SD 2100v2, SD 2100e, SD 2100, SD 2000
• Coil Size: 15in x 12in (38cm x 30cm)
• Coil Shape: Semi-elliptical
• Coil Winding: Double-D (DD)
• Water Protection: Water-resistant (not submersible)
• Cable: Low-noise shielded with gold-plated plug
• Wire: Multi-strand Litz wire
• In the Box: Coil, protective cover, mounting hardware

Why Buy from Serious Detecting

We're an authorized Minelab dealer, so your 15" x 12" Commander coil ships with Minelab's manufacturer warranty and access to their technical support. Our staff has run Commander coils on GPX detectors in relic-heavy ground and can help you dial in Iron Reject for your site. Browse the full Minelab detectors & accessories range or the complete metal detector search coils catalog to compare configurations. Every order over $99 ships free within the continental US, with a 30-day return window and price-match guarantee.