These drinking fountain - water cooler parts allow trajectory adjustment over wide range of pressures. Fits all brands of water coolers and drinking fountains. Stainless steel housing with plastic cover and rubber gasket included. Pressure rating is 120 PSI/8 Bar. Pro Flo cartridges are NSF listed to ANSI/NSF Std. 61 Annex G. Keep your drinking fountain running smoothly with these Pro Flo water cooler - drinking fountain parts.