Furnace Filter Whistle

A clogged or dirty furnace filter can rob your furnace of energy efficiency. Knowing when to replace your furnace filter will enable you to keep your furnace more energy efficient, saving you energy in the long run. The furnace filter whistle sounds when your filter becomes 50% clogged letting you know it will soon need replacing. Helps to maximize efficiency of filters used for heating and air conditioning. Available individually packaged with use instructions (see below) or may be custom packaged with your logo, message or program theme.

Furnace Filter Whistle

Model No. FA1

A clogged or dirty furnace filter can rob your furnace of energy efficiency. Knowing when to replace your furnace filter will enable you to keep your furnace more energy efficient, saving you energy in the long run. The furnace filter whistle sounds when your filter becomes 50% clogged letting you know it will soon need replacing. Helps to maximize efficiency of filters used for heating and air conditioning. Individually packaged with use instructions.

Natural Fiber Air Filters

Model No. Z-MS-P1024X20FT

Natural Fiber Air Filters are self-supporting energy conservation products. A 25% greater effective filter area is gained, because no metal support frame is needed. Extremely durable and reusable, can be cleaned by vacuuming or rinsing with regular tap water and ordinary detergent. Natural Fiber Air Filters, also referred to as hogs hair filters, can be used over and over again. The high contaminant holding capability keeps the filters working 2 1/2 to 3 times longer. Fire retardant, UL Listed Class 2.

Roll Size: 1"T x 24"W x 20'L. Makes up to twelve average size filters.