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 93 – PGR Tee Type 21 – 90° Side Outlet Tee Type 10 – Single Socket Tee Type 16 – Clamp-on Tee