18x25x2 MERV 13 Pleated Air Filter 6PK - 17.75x24.75x1.75 - Actual Size Watts Filter Life: 6 months or

Filter Life: 6 months or 300 gallons (whichever comes first)

AHAM certified output

Hydrotech 33001056 Membrane is compatible with the following Hydrotech RO systems: HT123

18x24x1 MERV 13 Air Filter - Box of 6

The Bemis 1044 Humidifier Wick Filter Replacement is a replacement filter for use in Bemis tabletop humidifiers

18x25x2 MERV 13 Pleated Air Filter 6PK - 17.75x24.75x1.75 - Actual Size Watts Filter Life: 6 months or18x25x2 MERV 13 Air Filter Box of 6 Actual Size of Filter: 17 1 2 x 24 1 2 x 1 Air filters are ranked in a minimum efficiency rating value (MERV) system. The higher the MERV rating, the better the filter can filter out all airborne particulates. Since we are constantly trying to improve indoor air quality, it only makes sense that we would offer air conditioner filter MERV 13. 18x25x2 MERV 13 filters are right on the cusp of being classified as medium