Compatible with Honda air filter models engines:
GX240K1 GX240R1 GX240R2 GX240RT1 GX240RT2 GX240U1
GX270 GX270R GX270RT GX270RT2 GX270U GX270UT
GX340K1 GX340R1 GX340R2 GX340RT1 GX340RT2 GX340U1
GX390K1 GX390R1 GX390R2 GX390RT1 GX390RT2 GX390U1 GX390UH1 GX390UT1
Compatible with generac generators foam air filters:
EB3000 EB3500X EB3500XK1 EB3800X EB4000
EB5000X EB5000XK1 EB5000XK2
EB6500SX EB6500X
EG4000CL EG5000CL EG6500CL
EM3000 EM3500SX EM3500SXK1 EM3500X EM3800SX EM4000
EM5000SX EM5000SXK1 EM5000SXK2 EM5000X
EM6000GP EM6500SXK1
EMS4000 EMS4500
EW140 EW170 EW171 EW171K1
EX3300S EX3300SK1 EX4500SK1 EXW171S