Image Tuff-Lite® Square Head Drain Plug Jump to Section Product Options Related Products Product Options Part Number Male Thread Male Thread Size Material Color TPS1 NPT 1/8" Nylon White TPS2 NPT 1/4" Nylon White TPS3 NPT 3/8" Nylon White TPS4 NPT 1/2" Nylon White TPS6 NPT 3/4" Nylon White TPS8 NPT 1" Nylon White TPS10 NPT 1-1/4" Nylon White Related Products Image Tuff-Lite® Hex Head Drain Plug Image Tuff-Lite® Hose Run x Hose Branch Tee Image Tuff-Lite® Hose Shank x Male NPT Insert Image Tuff-Lite® Reducing Bushing Image Tuff-Lite® Short Shank Female GHT Coupling