Filbur FC-9870 Pool 18" x 11" Rectangular DE Grid Filter airsupply this Waterway wet end is

this Waterway wet end is a practical replacement when the full wet-side assembly with 2 inch MBT x 2 inch MBT connections needs restoration

In spa electronics

Fits compatible 100 square foot front access applications

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

combustion support

Filbur FC-9870 Pool 18" x 11" Rectangular DE Grid Filter airsupply this Waterway wet end isA 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