12 x 18 Super Strong Trim Tab Kit w/o Switch -24V - Single ActuatorLenco Electric Super Strong Trim Tab Kits were designed for sport-fishing boats, high speed cruising boats and large commercial vessels. 7 Gauge flat - 304 SS blades with all stainless steel mounting hardware withstand the rigors of the most demanding conditions. No spray or mist when mounted in recessed pockets. 3/8 diameter hinge pin and 3.75 sacrificial anode. All Super Strong Trim Tab Systems have Vandar Upper Mounting Brackets with Gland Seal and 10 gauge SS lower mounting brackets with 3/8 SS bolts Actuator Part # 15063-002 (Super Strong 24-Volt Trim Tab Kit)Specifications:Suggested Boat Length: 24' to 40'Length of Tab: 12Width of Tab: 18Blades: 7 Gauge Stainless SteelFinish: SmoothSwitch Kit: Sold SeparatelySwitch Required: 10222-211D or 15070-001 Class: Fuel EfficientCompliance: CE CertifiedCompatibility: Any BoatActuators: 24-voltWARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (dehp) which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.