Exact MERV 4

6 x 18 1/4 x 1 basic filters in the the exact size of 6 x 18 1/4 x 1. Finding the perfect fit filter isn't always easy so we teamed up with a leadi...

6 x 18 1/8 x 1 basic filters in the the exact size of 6 x 18 1/8 x 1. Finding the perfect fit filter isn't always easy so we teamed up with a leadi...

6 x 18 x 1 basic filters in the the exact size of 6 x 18 x 1. Finding the perfect fit filter isn't always easy so we teamed up with a leading manuf...

6 x 17 7/8 x 1 basic filters in the the exact size of 6 x 17 7/8 x 1. Finding the perfect fit filter isn't always easy so we teamed up with a leadi...

6 x 17 3/4 x 1 basic filters in the the exact size of 6 x 17 3/4 x 1. Finding the perfect fit filter isn't always easy so we teamed up with a leadi...

6 x 17 5/8 x 1 basic filters in the the exact size of 6 x 17 5/8 x 1. Finding the perfect fit filter isn't always easy so we teamed up with a leadi...

6 x 17 1/2 x 1 basic filters in the the exact size of 6 x 17 1/2 x 1. Finding the perfect fit filter isn't always easy so we teamed up with a leadi...

6 x 17 3/8 x 1 basic filters in the the exact size of 6 x 17 3/8 x 1. Finding the perfect fit filter isn't always easy so we teamed up with a leadi...

6 x 17 1/4 x 1 basic filters in the the exact size of 6 x 17 1/4 x 1. Finding the perfect fit filter isn't always easy so we teamed up with a leadi...

6 x 16 7/8 x 1 basic filters in the the exact size of 6 x 16 7/8 x 1. Finding the perfect fit filter isn't always easy so we teamed up with a leadi...

6 x 16 3/4 x 1 basic filters in the the exact size of 6 x 16 3/4 x 1. Finding the perfect fit filter isn't always easy so we teamed up with a leadi...

6 x 16 5/8 x 1 basic filters in the the exact size of 6 x 16 5/8 x 1. Finding the perfect fit filter isn't always easy so we teamed up with a leadi...

6 x 16 1/2 x 1 basic filters in the the exact size of 6 x 16 1/2 x 1. Finding the perfect fit filter isn't always easy so we teamed up with a leadi...

6 x 16 3/8 x 1 basic filters in the the exact size of 6 x 16 3/8 x 1. Finding the perfect fit filter isn't always easy so we teamed up with a leadi...

6 x 16 1/4 x 1 basic filters in the the exact size of 6 x 16 1/4 x 1. Finding the perfect fit filter isn't always easy so we teamed up with a leadi...

6 x 16 1/8 x 1 basic filters in the the exact size of 6 x 16 1/8 x 1. Finding the perfect fit filter isn't always easy so we teamed up with a leadi...

6 x 15 7/8 x 1 basic filters in the the exact size of 6 x 15 7/8 x 1. Finding the perfect fit filter isn't always easy so we teamed up with a leadi...

6 x 15 3/4 x 1 basic filters in the the exact size of 6 x 15 3/4 x 1. Finding the perfect fit filter isn't always easy so we teamed up with a leadi...

6 x 15 5/8 x 1 basic filters in the the exact size of 6 x 15 5/8 x 1. Finding the perfect fit filter isn't always easy so we teamed up with a leadi...

6 x 15 1/2 x 1 basic filters in the the exact size of 6 x 15 1/2 x 1. Finding the perfect fit filter isn't always easy so we teamed up with a leadi...

6 x 15 1/4 x 1 basic filters in the the exact size of 6 x 15 1/4 x 1. Finding the perfect fit filter isn't always easy so we teamed up with a leadi...

6 x 15 1/8 x 1 basic filters in the the exact size of 6 x 15 1/8 x 1. Finding the perfect fit filter isn't always easy so we teamed up with a leadi...

6 x 15 x 1 basic filters in the the exact size of 6 x 15 x 1. Finding the perfect fit filter isn't always easy so we teamed up with a leading manuf...

6 x 14 7/8 x 1 basic filters in the the exact size of 6 x 14 7/8 x 1. Finding the perfect fit filter isn't always easy so we teamed up with a leadi...