Shop Our Products. Mastercool Store/Manufacturer /MastercoolRefine by Sort byWe recommendNewest arrivalsPrice: Low to HighPrice: High to LowName: A to ZName: Z to AFiltersClear allFiltersClear allShow itemsShow itemsOn SaleCornwell Tools Heater Attachment For 300 CFM Blower Fan, MCL20300HCornwell Tools Heater Attachment For 300 CFM Blower Fan, MCL20300Hwas $84.95 Save 65%$29.99New Mastercool A/C Manual Hose Crimper, 71550Mastercool A/C Manual Hose Crimper, 71550$125.00Mastercool 37° Flaring & Double Flaring Adapter Set, 71098Mastercool 37° Flaring & Double Flaring Adapter Set, 71098$60.00