Ts11K, High Temp Pilot Safety Valve, 1/2" NPT, 3/16" Cct Pilot, 3-1/2" Width, Pilot Out Only ( K Type ) Ts11 Pilot Safety Valve For Blodgett Fm Retrofit Kits. Note: Has Blue Gasket For High Temp. Blodgett Oven Series 900, Early Units Updated & Units Made After 1-25-09. To Convert 1/4" Cct Pilot To 3/16" Cct Tubing Order # 26-1883. For Thermocouple Order # 51-1457 (Blodgett 52091) For NAT Pilot Assembly Order # 51-1500 (Blodgett 52089) For LP Pilot Assmbly Add LP Orifice # 26-1554 To NAT Pilot. For Brass Adapter,1/2" FPT X 1/2" Mpt, Use # 26-4139 For Complete Upgrade Kit Series 900, Use # 52-1169 1/8" Aluminum Tubing 50 Ft. Roll # 261417 3/16" Aluminum Tubing 50 Ft. Roll # 261418 1/4" Aluminum Tubing 50 Ft. Roll # 26-1419 "Rigid" Tube Cutter 1/8 To 5/8 , # 72-1147 Tube Bender 3/16 To 3/8, # 72-1106 Solid State Pocket Gas Detector # 85-1101 Teflon Thread Sealing Tape # 85-1109 "Gripp" Heavt Duty Thread Sealer 1/2 Pint # 85-1101 PTFE Heavy Duty Thread Sealer 1/4 Pint # 85-1136