Filter P-8300 100Sqft Caldera Spa 16 1/2 x 8 PWK100 77004 FC-3966

Filter P-8300 100Sqft Caldera Spa 16 1/2 x 8" replaces PWK100 77004 FC-3966

Filter Cartridge diameter -8"

Cartridge length - - 16-1/2"

Top configuration -Open w/Molded Gasket, Bottom configuration -Open w/Molded Gasket

Top dimension -3-1/8",

Bottom dimension -3-1/8"

Square footage -100

Spa OEM's that use this filter cartridge- Watkins Hot Springs- 100SF Gleam

This Proline filter replaces the following filters as well:

C-8300 (Unicel)
FC-3966 (Filbur)
17-175-2505 PWK100 (Pleatco)
77004 (HotSprings)

Diameter: 8", Length: 16-1/2", Top: 3-1/8" Open with molded gasket, Bottom: 3-1/8"  Open with molded gasket 100Sq. Ft.