Description Literature Accessories Description Freudenberg Sealing Technologies (formerly Tobul) gauge blocks provide a surface to attach pressure gauges within high pressure systems, which allows the user to quickly monitor the system pressure, up to a 3000 PSI maximum pressure. State of California Proposition 65 WARNINGCancer and Reproductive Harm - www.P65Warnings.ca.gov. Literature & Docs Accessories Freudenberg NOK Sealing Technologies GG2527F-C Hose & Gauge Assembly Including Case, 3000 PSI Was: Now: $714.37 Add To Cart View More