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 - 23 March 2019 133 0 SHARE Facebook Twitter Go to the deal page: 3M Filtrete Allergen Defense HVAC Filter 3pk for $16 + pickup at Walmart