This Kit includes: MTM Hydro Fittings and Components, only. ¼” Stainless Plug for PF22 Cannon Inlet. PF22.2 Foam Cannon. SG28 Easy Hold Italian Spray gun. · 3/8” Stainless QC Plug for gun inlet. 3/8” Brass M22 (14mm) plug for alternate M22 installation at Gun Inlet.