Product Information Seal: Buna-N Select a Product Part NumberMaterialSizeWorking Pressure G600-C-ALCRA380 Permanent Mold Aluminum6" G200-C-SSCR316 Investment Cast Stainless Steel2"250 PSI G300-C-SSCR316 Investment Cast Stainless Steel3" G100-C-BRCRC38000 Forged Brass1"250 PSI G100-C-ALCRA380 Permanent Mold Aluminum1"250 PSI G100-C-SSCR316 Investment Cast Stainless Steel1"250 PSI G300-C-BRCRC38000 Forged Brass3" G400-C-SSCR316 Investment Cast Stainless Steel4" G400-C-BRCRC38000 Forged Brass4" G150-C-ALCRA380 Permanent Mold Aluminum1-1/2"250 PSI G200-C-ALCRA380 Permanent Mold Aluminum2"250 PSI G150-C-SSCR316 Investment Cast Stainless Steel1-1/2"250 PSI G200-C-BRCRC38000 Forged Brass2"250 PSI G300-C-ALCRA380 Permanent Mold Aluminum3" G400-C-ALCRA380 Permanent Mold Aluminum4" G600-C-SSCR316 Investment Cast Stainless Steel6" G150-C-BRCRC38000 Forged Brass1-1/2"250 PSI