When ordering from the US, parcels may be subject to import tax and duty charges, which the buyer is responsible to pay. Thermal Relief Valve Pressure Regulator Rupture Disk 8500 Psig @ 500F 9812799 cc This product data sheet is originally written in English. Thermal Relief Valve Pressure Regulator Rupture Disk 8500 Psig @ 500F # 9812799 This is awesome. This is hard to find. SEE Condition above. I do not know anything about these. If you know something please let me know. I know these are hard to find and worth alot. It is 9.5 OAL. it screws on the bottom. PLEASE - Check out my other heater elements . I have lots and more to list. I will give you a deal on multiples. FREE SHIP Thermal Relief Valve Pressure Regulator Rupture Disk 8500 Psig @ 500F # 9812799 This is awesome. This is hard to find. SEE Condition above. I do not know anything about these. If you know something please let me know. I know these are hard to find and worth alot. It is 9.5 OAL. it screws on the bottom. PLEASE - Check out my other heater elements . I have lots and more to list. I will give you a deal on multiples. FREE SHIP Recommended products Provided by NEW LOT 2 Thermal Relief Valve Regulator Rupture Disk 8500 Psig 500F A4990-1 cc View item NEW Taylor Rupture Pin Angle Valve Pressure Relief w/ Safety Cage Holder # CB View item NEW HUGE LOT of 9 BS B Rupture Pressure Disk Disc 2" / 5 PSIG / type - LPS Sigma View item RARE Fairchild Industrial Vacuum Pressure Regulator # 1626 / PSIG 250 View item INVENSYS T.A.C PNEUMODULAR Pneumatic Regulator Gradual Switch 30 PSIG 2390-515 View item LOT Ametek Pressure Switch Transmitter Diaphragm Valve # 88a005a2 / SB 316L View item NICE RARE NUMATICS Solenoid Valve w/ Coil Pressure # 031SA441000061 / 236-127B View item NEW Norgren Pneumatic Pressure Regulator With Gauge (0-160 PSI) # R72g-2at-rmg View item Brand Watlow Model 9-1/2" oal MPN A4990-1