Before You Use: This product is intended for use byhomebrewers and home winemakers only. This productis not to be used, as is, with commercial brewingequipment (cleaning and filling machinery).This product is safety-rated at 60 PSI (clearly marked)and is not to be pressurized beyond. Use only withSanke "D" style couplers, equipped with a pressurerelease valve and a working check-valve.