WaterFurnace 59P509-08WF 28x30x2 replacement air filter for the following Waterfurnace Geothermal units:
Single Speed Vertical Units: NDV036
Dual Capacity Vertical Units: NDV038
Vertical Units: LSV042, LSV048
The Geothermal 59P509-08WF MERV 11 air filter is approximately 28x30x2, the size recommended by WaterFurnace for a proper fit.
The 59P509-08WF is made of 100% synthetic fibers that are needled together and then electro statically charged. The needled fibers create a dense mat that produces a MERV 11 rating and higher mechanical efficiency at a lower air resistance than other pleated filters.
The manufacturer suggested replacement interval is 4 to 6 months, depending upon conditions and lifestyle.
Case of four 28x30x2 WaterFurnace Geothermal Filters.
Payment & Security
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.