21st Century"s Fiberglass Kerosene Heater Wicks are made of graphite coated fiberglass, a re-inforced cloth band and the highest quality cotton. Wick Model 101 fits Alladin B131 ,J380, S181U, Corona SX-2, SX-2, SX-2C, Crestline 3000, 3010 Everglow P-E2, Futura E-2 DUCHESS, FH-21 DUCHESS, Mega P-E2, Perfection PSR8, Radiant King RK-70, RK-75, RK-110, Suncrest 4010, Toyokuni 84 EU, 90 EU and more. Contact us for a free cross reference chart..