Lowe's offers the Frigidaire 5,000 BTU Window Air Conditioner, model no. LRA050XT7, for $119. Coupon code "47000LOWES2836S" drops it to $107.10. Opt for free in-store pickup to avoid the steep $79 shipping charge. That's tied with our mention from a week ago and the lowest price we could find by $13. This air conditioner features a 2-speed fan, antibacterial filter, and adjustable thermostat.