UNI Filter NU-3212ST Air Filter Fits Yamaha ATV Jandy R0039300 Natural Gas Valve IID for Teledyne Laars Pool Heater 5 HP Single speed pump

5 HP Single speed pump

5 Series Pump

OER CH14V Contact Set 131-12

Specialist's Choice CH917 Distributor Rotor CH-917

Garland 2315111 Polaris Slide 55

UNI Filter NU-3212ST Air Filter Fits Yamaha ATV Jandy R0039300 Natural Gas Valve IID for Teledyne Laars Pool Heater 5 HP Single speed pumpUNI air filters. The principal of how foam air filters work is simple: "Open Cell" polyurethane foam is wetted with specially developed filter oil. The "sticky" filter oil is suspended in the path of the dirty air on the strands of the web like cell structure of the foam. This makes it impossible for the dirt to pass through the strands. As the outer strands become loaded with dirt particles, the wetted strands down stream start trapping dirt,