Type 77 – Plastic Plug admin | August 9, 2020 A grey plastic plug to fit open ended tubes. See also Type 84. Suitable for medium and heavy guage tubing only. Add to quote Categories: All Products, Fitting, Klamp, Miscellaneous Description Description Related products Type 95 – PGR Internal Spigot Type 88 – Three Socket Angle Tee Type 97 – Set Screws Type 21 – 90° Side Outlet Tee