Durst Fuel Oil Filter 3/8-in IPS - White Hydronic Baseboard Heater Accessory - Steam Compatible - Strongest Cast Aluminum Top - Easy Disassembly in the Hydronic Baseboard Heater Accessories department at Lowes.com
120V Filter Housing Heater Jacket
Raw Power Fuel Filter Heaters - Keep your vehicle running in the cold! - Utah Biodiesel Supply
CLS-1200-FH - FILTER VENT HEATERS FOR CELL CULTURE BAGS- Chemglass Life Sciences
Amazon.com: BLAUX Heatcore Replacement Filter - (1 Pack) Small Heater Filter | Ceramic Heater Filter | Mini Heater Air Filters for Home | Filter for Electric Indoor Space Heater | Space Heater
Oase BioMaster Thermo 600 Canister Filter with Built-in Heater @ Fish Tanks Direct
Heating Season Quick Tip - Change your Furnace Air Filter - LEVCO
Heater Air Filters: When to Change and How to Find Them