Filbur FC-9870 Pool 18" x 11" Rectangular DE Grid Filter airsupply The Raypak Unitherm Governor spring

The Raypak Unitherm Governor spring is designed for compatible 105A

and 153 heater applications where the supported user-adjustment control needs replacement

Replacing the correct barrel helps preserve that more active hydrotherapy feel without forcing a larger assembly replacement than necessary

Using the correct model-specific solenoid helps preserve the intended sequence control of the equipment instead of introducing an uncertain substitute

Filbur FC-9870 Pool 18" x 11" Rectangular DE Grid Filter airsupply The Raypak Unitherm Governor springA rectangular DE grid filter helps create the working filtration surface inside a compatible diatomaceous earth filter system, and this Filbur FC 9870 grid is designed in an 18 inch by 11 inch format for matching pool applications. When a grid becomes torn, worn, or less effective, the filtration system can lose the dependable debris capture support it should provide. The 18 inch by 11 inch dimensions and FC 9870 reference give this part practical