Best Seller | FRIEDRICH KWCFL Kuhl® AC Filter,Polyester,PK3 AC Filter, For Use With Grainger Item Number 4PLC7, 4PLC8, 4PLC9, 4PLD5, 4PLD6, For Use With Mfr. Model Number EL36-3, EM24N34A, SL28-3, SL36-3, SM24N30A, Includes (3) Carbon Filters, For Use With All KCL, KEL and KHL K�hl Commercial Grade Models,... ... more FRIEDRICH KWCFL Kuhl® AC Filter,Polyester,PK3 AC Filter, For Use With Grainger Item Number 4PLC7, 4PLC8, 4PLC9, 4PLD5, 4PLD6, For Use With Mfr. Model Number EL36-3, EM24N34A, SL28-3, SL36-3, SM24N30A, Includes (3) Carbon Filters, For Use With All KCL, KEL and KHL K�hl Commercial Grade Models,... | | $31.89 go to store |