The 20XL's balanced stem design enables the PRV to react in a smooth and responsive manner when changes to system flow occur.. The composite cartridge and bell housing deliver superior strength and corrosion resistance. It’s short lay length and compact design ensures ease of installation in residential or commercial applications from new construction to replacement.
5 & ASTM A307A.Carriage bolts feature a slightly rounded head and have no exposed sharp edges when fully fastened. The square shoulder on carriage bolts help to hold it in place while the nut is fastened.