Home Dealnews 3M Filtrete Allergen Defense HVAC Filter 3pk for $16 + pickup at... Dealnews 3M Filtrete Allergen Defense HVAC Filter 3pk for $16 + pickup at Walmart By ARCOM - 1 April 2019 191 0 SHARE Facebook Twitter Go to the deal page: 3M Filtrete Allergen Defense HVAC Filter 3pk for $16 + pickup at Walmart