Norgren pneufit d d0020 series acetal push in fittings metric norgren d00200800 this straight union is from the pneufit d range of push in fittings and is a simple to use device that features releasable stainless steel grab rings that offer fast secure assembly and disassembly of nylon pe and pu hoses the connector is ready to use and requires no tools for assembly the fitting is manufactured from fda approved acetal material and is widely used in food potable water and beverage dispensi