Two 58mm silicone steam rings for 900-series machines ✔️ Seals for 900 Series espresso machines; quick swap, leak-proof This replacement gasket set is designed for 58mm group heads on 900-series espresso machines. It's an easy drop-in replacement that helps restore proper pressure and stop leaks, delivering more consistent shots at home or in a cafe setup. ✅ 58mm silicone steam ring gasket set of 2 for the 900-series machines ✅ Restores pressure and stops leaks during brew ✅ Material: silicone for tight seal and heat resistance ✅ Easy install: remove center screw, swap gasket, reassemble ✅ Color: yellow to indicate replacement part 💡 What is a silicone steam ring replacement used for in 900-series espresso machines? This handy upgrade helps you keep consistent pressure and a tight seal during brewing. - restores group head pressure and stops steam leaks on 900-series espresso machines - 58mm silicone gasket designed for a snug seal during brewing - simple DIY swap: remove center screw, swap gasket, reassemble - compatible with BES900XL BES920XL BES980XL BES990