Tier1 brand replacement for American Standard BAYFTAH26M - 21 x 26 x 5 - MERV 11 (2-Pack) Free_Shipping The calcite dissolves and is

The calcite dissolves and is consumed over time

D-40A replaces the older D-40 model

Keep your Aprilaire unit up and running at all times with this replacement

The Tier1 Carbon and KDF media blend works hard to deliver great tasting water throughout your home

Turn your drinking water into a premium beverage

Tier1 brand replacement for American Standard BAYFTAH26M - 21 x 26 x 5 - MERV 11 (2-Pack) Free_Shipping The calcite dissolves and isThis Tier1 21X26X5 air filter is rated at MERV 11 to capture 90% of particles, 1 3 microns in size. Replacement for: American Standard BAYFTAH26M, FLR06074 and Honeywell TRN2621T1. Actual size: 20 1 10 inches (length) x 25 7 10 inches (width) x 5 inches (depth). This filter comes with a foam lining on every edge of the filter.