Complete Kit Covering All Most Common Sizes From 1.25" - 4" (Set of 12 Plugs) Easy Installation and Removal. Fitting sleeves can simply be pushed out and transferred to another plug. Since the sleeves are 1/8" NPT, you have the ability to use different fittings, and increase or decrease the feed/vent sizes. Fittings Included, (1) 1/8" NPT Barb Fitting, (2) 1/8" NPT Sleeves, (1) 1/8" NPT Diffuser Fitting, and (1) 1/8" NPT Vent Fitting, Pre-assembled and ready for use. Temperature Rating 600 Degrees F Plug Fitment - (A) 1.25" Sch 5/10/40 Pipe, & 1.5" Tube / (B) 1.5" Sch 5/10/40 Pipe & 1.75" Tube / (C) 2" Sch 10/40/80 Pipe & 2"-2.25" Tube / (D) 2" Sch 5/10 Pipe & 2.5" Tube / (E) 2.5" Sch 5/10 Pipe & 2.75"-3" Tube / (F) 3.5"-4" Tube (Not in main picture)

If you are looking for individual sizes take a look at our other listings. We also offer aluminum back purging plugs, and quick disconnect line kits also available through Amazon.