RESEARCH PRODUCTS | sku: 330949366 RESEARCH PRODUCTS Drain Spud For Model 550/560 Log in for pricing Compare
RESEARCH PRODUCTS | sku: 330949364 Manual Humidifier Control Manual Humidifier Control|The indoor humidity should be set to match the outdoor temperature to prevent water from running down the sides of your windows|When the relative humidity reverses the... Log in for pricing
RESEARCH PRODUCTS | sku: 331337783 Media Air Cleaner, 16 X 20, MERV 11 Media Air Cleaner, 16 X 20, MERV 11|Protects your HVAC system and offers superior filtration performance to 1" filters|Unpainted steel cabinet|Comes with one AprilAire 110Â MERV 11 Air... Log in for pricing
RESEARCH PRODUCTS | sku: 330949366 RESEARCH PRODUCTS Drain Spud For Model 550/560 Drain Spud For Model 550/560|This is the plastic fitting which attaches to the base of the housing of your humidifier. It is designed to allow for the connection of the 1/2" drain hose.|Our 4223... Log in for pricing
RESEARCH PRODUCTS | sku: 330949365 RESEARCH PRODUCTS Orifice (Yellow) Orifice (Yellow)|Fits for Aprilaire humidifier 400, 500, 550, 550A, 558, 560, 560A, 568 and 600.|Replacement Humidifier Parts Yellow Orifice 4231 can accurately measure the flow of water entering the... Log in for pricing