LivingSocial: 4-pk Purafilter Gold HVAC Air Filters (MERV 11) – $18.40 FS w/$35 purchase

TODAY ONLY! LivingSocial has a 4 pack of (DuPont) Purafilter Gold High-Efficiency Air Filters (MERV 11) for $22.99. Apply 20% off coupon TODAY20 at checkout. Free shipping with $35. (I purchased two 4-pks to get FS.)
Coupon code: TODAY20
https://www.livingsocial.com/deal…-4-pack-14
Product Info:
- 4-Pack of Purafilter Gold High-Efficiency Air Filters
- Purafilter2000 Gold Series MERV 11 filter
- Pack of four filters
- High-efficiency air filter
- Multiple sizes available
- Traps micro-particles associated with allergies, like ragweed and pollen
- Intrepid Filtration Media improves filter performance
- Industrial-strength construction
- Lasts up to 90 days