Taylor Made Ultra III Boat Hatch The Taylor Made Ultra III is a sleek, low profile boat hatch the is easy to install and comes with pre-drilled mounting holes. The grey tempered safety glass features easy view and scratch resistance qualities. The new handles are able to lock in two positions, one in an open vent position and closed for security. The included trim ring makes for easy installation of a screen. Features: Ventilation Hatch Security Locking Handles Low Profile Access Trim Ring Included Silver frame Screen Sold Separately Specifications: Part# Size Frame Size Maximum Hole Cut-Out Shipping Weight Screen Part# 50101 10″ x 10″ 12-3/8″ x 12-3/8″ 9-5/8″ x 9-5/8″ 8 lbs. 50102 50103 12″ x 12″ 14-3/4″ x 14-3/4″ 12″ x 12″ 9 lbs. 50104 50105 13″ x 18″ 15-5/8″ x 20-7/16″ 12-7/8″ x 17-11/16″ 11 lbs. 50106 50107 17″ x 17″ 19-7/16″ x 19-7/16″ 16-11/16″ x 16-11/16″ 17 lbs. 50108 50109 18″ x 18″ 20-3/4″ x 20-3/4″ 18″ 18 lbs. 50110 50111 20″ x 20″ 22-1/2″ x 22-1/2″ 19-3/4″ x 19-3/4″ 19 lbs. 50112