Access Panel, Fits Up To 15 x 15-In. Opening, 16 x 16-In. Overall K&H Pet Products neomycin and polymyxin B are

neomycin and polymyxin B are added as preservatives

We recommend choosing a 4-month frequency for these filters

Outer Frame Dimensions: 9"" x 15

Heavy duty construction

LONG LASTING PARASITE SUPPRESSION

Access Panel, Fits Up To 15 x 15-In. Opening, 16 x 16-In. Overall K&H Pet Products neomycin and polymyxin B are15" x 15", Springfit Access Panel, Convenient & Attractive Means To Hide Unsightly Wires, Cables & Pumps While Maintaining Their Accessibility, Installs Faster & Easier, No Cutting Is Required, Integrity Of A Wall Remains Intact, Plain White Faceplate That Can Be Wallpapered Or Painted To Match A Rooms Decor, For Hole Sizes 10" x 10" 15" x 15" Use A 15" Panel. Overall Frame Size 16" x 16", Access Door Size Is 14" x 14", Fits Into Odd Shaped Holes,