This durable, sealed sound unit is constructed of 304 stainless steel inside and out and comes with a 5-year rust warranty. Meets ABYC specification A-23 for boats up to 12 meters (39'). Pre-wired and designed to fit existing hole patterns. Use this low pitch horn for single installations. Maximum amp draw: 3 amps. 106 dB rating. Horn measures 3"L x 3-1/4"W x 1-3/4"H. Grill measures 4-7/8" x 2-3/8" with 4" on centers mounting holes. Low pitch 304 stainless steel inside and out | All Stainless Steel Mini Drop-In Single Horn, Low Pitch