100-DIS-C-PS – DI Slotted Pro-Snap Grate, 1/2 Meter, Load Class "C" 4" Width 100-DIS-F-PS – DI Slotted Pro-Snap Grate, ADA, 1/2 meter, Load Class "F" 4" Width 100-GSS-A-PS – Galvanized Slotted Pro-Snap Grate, ADA/HP, Load Class "A" 4" Width 100-GSS-C-PS – Galvanized Slotted Pro-Snap Grate, ADA/HP, 1/2 Meter, Load Class "C" 4" Width 100-HDPE-A-PS – HDPE Perforated Pro-Snap Grate, 1/2 Meter, Load Class "A" 4" Width 100-SSS-A-PS – SS Slotted Pro-Snap Grate, ADA/HP, 1/2 Meter, Load Class "A" 4" Width 100-SSS-C-PS – SS Slotted Pro-Snap Grate, ADA/HP, 1/2 Meter, Load Class "C" 4" Width