4 Pack 4 By 10 Décor Grates Decor Grates FRP410 Pristene Air Filter Retainer For Decor Grates Registers 4 By 10

Decor Grates FRP410 Pristene Air Filter Retainer For Decor Grates Registers, 4' By 10', 4 Pack - -. Decor Grates FRP410 Pristene Air Filter Retainer For Decor Grates Registers, 4" By 10", 4 Pack - -. Pristene Filter Retainer clips under Decor Grates register to hold filter media in place 。 Allows operation of Decor Grates airflow control without compromising filter 。 Pressure fitted to prevent retainer separating from register 。 Re-usable retainer, so only need to replace filter media, as required 。 Only works with Decor Grates floor registers 。 This air filter clips under register to hold filter media in place and allows operation of airflow control without compromising filter. Pressure fitted to prevent retainer separating from register and only works with floor registers.Measure the inside of the damper box before cutting the filter media. For example, the inside measurement of a 4”x10” damper box is only 3.5”x9.5”. Each pack of filter media will produce the maximum possible number of filters by cutting only what you need. If you only have 4”x10” registers, the maximum possible number of filters from one filter pack is 15. 。。。