ASI 5 Gallon Ball Lock Keg NSF Metal Strap For home brewers with beer, wine, coffee, kombucha and juice applications New, not refurbished or used kegs; Pull-ring style pressure release valve in lid Pull-ring style pressure release valve in lid; Ball lock valve Food-grade 304 stainless steel construction; Permanently molded rubber bottom skirt Fully NSF (National Sanitation Foundation) approved beverage safe and with ongoing compliance via NSF monitoring for highest food safety design and quality of materials used