Pipe holders/brackets: ZPG type pipe holders offer an easy and convenient solution for fixing and holding spray manifolds, spray bars, risers & header pipes securely to walls and flat surfaces. PNR has also successfully used these in awkward areas using M10 threaded bar and back plates (a flexible and secure alternative if a surface is not close to the spray bars). ZPG pipe clamps/holders are most commonly used in pretreatment tunnels but are a diverse product we offer and can be used in many other applications to fix any pipe with OD’s of 3/4″, 1″. 11/4″. The high quality springs accommodate both steel and plastic pipes. ZPG clamps can be equipped with one or two springs (heavy pipes or where the pipes might be subjected to excessive vibrations). Materials: Body (PP, Polypropylene), Springs (AISI 302 Stainless steel, heat treated).