Weems & Plath 138 18" Aluminum Parallel Rule ADDFENACC3 Designed to fit a variety

Designed to fit a variety of shaft diameters

Trim Tab blades are 12 Gauge - 304 SS with a 5/8" flared trailing edge and 1/8" diameter hinge pin

NMEA 2000 drop cable (2 meters)

Dimensions L x W x H: 18 x 3 1/2 x 4 3/4

160°F thermostat for MerCruiser sterndrive or inboard engines with standard cooling systems

Weems & Plath 138 18" Aluminum Parallel Rule ADDFENACC3 Designed to fit a varietyThe 18 inch Aluminum Arm Parallel Ruler features aluminum arms and handles. The aluminum parallel ruler is manufactured to a 1 4" thickness and 18 inch length. The high quality construction of the aluminum parallel ruler is backed with a lifetime warranty. An essential item in any proper navigation kit, the aluminum parallel ruler is used to plot direction on your nautical chart. The aluminum parallel ruler is, essentially, comprised of two straight