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Replacement Air Filters for WaterFurnace Geothermal Comfort Systems   HEPA Filter Sales carries high efficiency disposable MERV 11 replacement air filters manufactured by Airguard for WaterFurnace. They are considered by WaterFurnace to be the OEM replacement pre-filters for all their Geothermal Comfort Systems. Replacement air filters from WaterFurnace are sized right for a proper fit and they are designed to get the maximum performance from your system. If you do not see the size of filter you need, please contact us and request a quote for your filter type and size.     Find By System Type: Envision Series  |  Legend Series  |  Premier Series     Find By Product Model:  WaterFurnace Products List  |  Related Links   WaterFurnace Envision Series Replacement Air Filters WaterFurnace Envision Series Replacement Air Filter Media The filter sizes below fit the built-on filter racks of WaterFurnace Envision Series Geothermal Comfort System units. Please make sure your unit’s filter rack and your existing filter match the size of the replacement filter you choose. Find your unit’s model number below for the manufacturer recommended replacement filter. Replacement Air Filter Sizes for WaterFurnace Envision Series Single Speed Vertical Units: NDV022 - 24 x 28 x 2 MERV 11 Air Filter NDV030 - 24 x 28 x 2 MERV 11 Air Filter NDV042 - 30 x 32 x 2 MERV 11 Air Filter NDV048 - 30 x 32 x 2 MERV 11 Air Filter NDV060 - 30 x 36 x 2 MERV 11 Air Filter NDV070 - 30 x 36 x 2 MERV 11 Air Filter Replacement Air Filter Sizes for WaterFurnace Envision Series Dual Capacity Vertical Units: NDV026 - 24 x 28 x 2 MERV 11 Air Filter NDV049 - 30 x 32 x 2 MERV 11 Air Filter NDV064 - 30 x 36 x 2 MERV 11 Air Filter NDV072 - 30 x 36 x 2 MERV 11 Air Filter All Other Models - View a list of available filter sizes. ‹‹ Back to top WaterFurnace Legend Series Replacement Air Filters WaterFurnace Legend Series Replacement Air Filter Media The filter sizes below fit the built-on filter racks of WaterFurnace Legend Series Geothermal Comfort System units. Some WaterFurnace units have an air filter rack that can be set for 1" or 2" when the units are installed, so please make sure your unit’s filter rack and your existing filter match the size of the replacement filter you choose. Find your unit’s model number below for the manufacturer recommended replacement filter. Replacement Air Filter Sizes for WaterFurnace Legend Series Vertical Units: LSV036 - 24 x 28 x 2 MERV 11 Air Filter LSV042 - 28 x 30 x 2 MERV 11 Air Filter LSV048 - 28 x 30 x 2 MERV 11 Air Filter LSV070 - 30 x 36 x 2 MERV 11 Air Filter LSV060 - 30 x 32 x 2 MERV 11 Air Filter All Other Models - View a list of available filter sizes. ‹‹ Back to top WaterFurnace Premier Series Replacement Air Filters WaterFurnace Premier Series Replacement Air Filter Media The filter sizes below fit the built-on filter racks of WaterFurnace Premier Series Geothermal Comfort System units. WaterFurnace Premier Series units have an air filter rack that can be set for 1" or 2" when the units are installed, so please make sure your unit’s filter rack and your existing filter match the size of the replacement filter you choose. Find your unit’s model number below for the manufacturer recommended replacement filter. Replacement Air Filter Sizes for WaterFurnace Premier Series Vertical Units: P019 - 24 x 28 x 2 MERV 11 Air Filter P022 - 24 x 28 x 2 MERV 11 Air Filter P028 - 24 x 28 x 2 MERV 11 Air Filter P034 - 24 x 28 x 2 MERV 11 Air Filter P040 - 30 x 36 x 2 MERV 11 Air Filter P046 - 30 x 36 x 2 MERV 11 Air Filter P056 - 30 x 36 x 2 MERV 11 Air Filter P066 - 30 x 36 x 2 MERV 11 Air Filter All Other Models - View a list of available filter sizes. ‹‹ Back to top Related Links   WaterFurnace Owner’s Manuals - If you need instructions on changing your units air filter you can find this info in your units owner’s manual. The filter changing instructions should be near the end of the owner’s manual.

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Airguard 59P509-07 MERV 11 Air Filter, Furnace Filter, Pre-filter (Click to Enlarge)   Airguard 59P509-07 30 x 32 x 2 Air Filter 4 Pack Model: 59P509-07 Price: $145.00 Product Size: 30" x 32" x 1 3/4" Product Type: MERV 11 Air Filter, Furnace Filter, Pre-filter Package Type: 4 Filter Pack Manufacturer: Airguard Quantity in Basket: none The 59P509-07 is considered by WaterFurnace to be the OEM replacement MERV 11 air filter for all their Geothermal Comfort Systems that use a 30 x 32 x 2 pre-filter. The 59P509-07 is approximately 30" x 32" x 1 3/4". Quantity:

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Airguard 59P509-06 MERV 11 Air Filter, Furnace Filter, Pre-filter (Click to Enlarge)   Airguard 59P509-06 30 x 36 x 2 Air Filter 4 Pack Model: 59P509-06 Price: $148.00 Product Size: 30" x 36" x 1 3/4" Product Type: MERV 11 Air Filter, Furnace Filter, Pre-filter Package Type: 4 Filter Pack Manufacturer: Airguard Quantity in Basket: none The 59P509-06 is considered by WaterFurnace to be the OEM replacement MERV 11 air filter for all their Geothermal Comfort Systems that use a 30 x 36 x 2 pre-filter. The 59P509-06 is approximately 30" x 36" x 1 3/4". Quantity:

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Airguard 59P509-08 MERV 11 Air Filter, Furnace Filter, Pre-filter (Click to Enlarge)   Airguard 59P509-08 28 x 30 x 2 Air Filter 4 Pack Model: 59P509-08 Price: $149.00 Product Size: 28" x 30" x 1 3/4" Product Type: MERV 11 Air Filter, Furnace Filter, Pre-filter Package Type: 4 Filter Pack Manufacturer: Airguard Quantity in Basket: none The 59P509-08 is considered by WaterFurnace to be the OEM replacement MERV 11 air filter for all their Geothermal Comfort Systems that use a 28 x 30 x 2 pre-filter. The 59P509-08 is approximately 28" x 30" x 1 3/4". Quantity:

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Airguard 59P509-04 MERV 11 Air Filter, Furnace Filter, Pre-filter (Click to Enlarge)   Airguard 59P509-04 24 x 28 x 2 Air Filter 4 Pack Model: 59P509-04 Price: $129.00 Product Size: 24" x 28" x 1 3/4" Product Type: MERV 11 Air Filter, Furnace Filter, Pre-filter Package Type: 4 Filter Pack Manufacturer: Airguard Quantity in Basket: none The 59P509-04 is considered by WaterFurnace to be the OEM replacement MERV 11 air filter for all their Geothermal Comfort Systems that use a 24 x 28 x 2 pre-filter. The 59P509-04 is approximately 24" x 28" x 1 3/4". Quantity:

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Airguard 59P509-05 MERV 11 Air Filter, Furnace Filter, Pre-filter (Click to Enlarge)   Airguard 59P509-05 28 x 36 x 2 Air Filter 4 Pack Model: 59P509-05 Price: $149.00 Product Size: 28" x 36" x 1 3/4" Product Type: MERV 11 Air Filter, Furnace Filter, Pre-filter Package Type: 4 Filter Pack Manufacturer: Airguard Quantity in Basket: none The 59P509-05 is considered by WaterFurnace to be the OEM replacement MERV 11 air filter for all their Geothermal Comfort Systems that use a 28 x 36 x 2 pre-filter. The 59P509-05 is approximately 28" x 36" x 1 3/4". Quantity:

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