4" Plastic inline sand trap (BASE 100P), cast iron grate ADA/Heelproof, C classVodalands 4 BASE plastic sand trap has a 4 internal width (6 external), 15 depth, and a 1. 64ft (0. 5 meter) length. This sand trap includes a cast iron grate ADA Heelproof, C class. Each trap will come with 2 adapters which can either come closed or with a channel connection option. Also allows for connection with 4 and 6 piping. Common applications: backyards, driveways, public facilities, commercial applications, etc. PARAMETERS Article . 808018.