Envirowise 20.7" x 20" x 4.7" Quikbox Filter Media 2-Pack, MERV 11

An CintBllTer replacement air filter is an integral part of a whole system that s your equipment. used with the Quikbox filter box , these Envirowise filters can last up to 6 months and is easily replaceable by you or your installer. CintBllTer Service First Part # FLRQB5AH21M11 , up to 6 Month Filter Life Specifications: Expandable Media Filter; 20.7x20x4.7 , MERV11 , Part number # FLRQB5AH21M11 These Filters are USED with or CintBllTer QuikBox Housings , Images Shown for Illustration Replaces Supersedes: 20.7 x 20 x 4.7 21x20x5 FLRQB5AH21M11 QwikBox EnviroWise Qwik Box Enviro Wise Filters FLRQB5AH FLRQB5AH21 and others