The Aprilaire 4004 strainer screen is installed on the inlet side of the solenoid valve. The purpose of the strainer screen is to filter out sand and other particulate matter which might get into the solenoid valve and clog it. The screen should be replaced every two to three years. Previous version of this item was black. Current version is red. NOTE: Also known as part 4358.


More Information
Manufacturer Aprilaire
Product Length 0.800
Product Width 0.200
Product Height 0.150
Product Weight 0.010
Package Length 3.800
Package Width 3.750
Package Height 0.200



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