Keep your Garmin thru-hull transducer properly aligned with this replacement fairing block. When the deadrise angle at your chosen mounting location exceeds 5 degrees, a fairing block is required to orient the transducer parallel to the waterline — ensuring consistent sonar accuracy across GT21, GT23, GT41, GT50, and GT51 series units.

Specifications:

• Compatible with Garmin GT21, GT23, GT41, GT50, and GT51 series thru-hull scanning transducers
• Positions transducer parallel to the waterline for improved sonar accuracy
• Recommended when mounting location deadrise angle exceeds 5 degrees
• Direct replacement fairing block

⚠️ California Prop 65 Warning: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.