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% replaces any number of letters (la% - lake, lamp)_ replaces one letter (ca_ - car, cat)

Crossword clues for Refrigerant gas:

FREON: Refrigerator gas
FREON: Banned refrigerator gas
FREON: Refrigerant gas
FREON: Controversial refrigeration gas
ETHANE: Refrigerant gas.
ETHANE: Colorless gas used in refrigeration