[ NAT/LP GAS SAFETY ][ SIZE 1/2" FPT ][ WIDTH 4" ];NAT 4" WC, [ BRAND RSW, MFG # 700-516, 7000 BMVR,;240,000 BTU, 250-750 MILLIVOLT;***MUST CHANGE SPRING, CAP & SCREW FOR LP, 11"WC,;INCLUDED.***;FOR THERMOPILE USE # 51-1121 (36", 2 WIRE LEAD, THERMOPILE);KEATING COUNTER FRYERS AND MIRACLEAN GRIDDLES.