Filters to fit Rainbow Spas.
PRB 25-SF (pair) Outer Dia. 5" (127mm) x length 2 x 6 5/8" (168mm) with 2 1/8"(52mm) end holes, Pleatco Ref PRB 25-SF, Unicel Ref: C-4405.
PRB 17.5SF(pair) Outer Dia. 5" (127mm) x length 2 x 4 5/8 (118mm) with 2 1/8" (52mm) end holes. Pleatco Ref: PRB17.5SF, Unicel Ref C-4401, OEM No17-2606.
PRB 25-IN (ea) Outer Dia. 5" (127mm) x length 13 5.16" (339mm) with 2 1/8" (52mm) end holes, Pleatco Ref PRB 25-IN, Unicel Ref C-4326.
PRB 35-IN-3(ea) Outer Dia. 5" (127mm) x length 9 3/8" (238mm) with 2 1/8" (52mm) end holes, Pleatco Ref PRB35-IN-3, Unicel Ref:C-4335, OEM No R173431.
PRB 50-IN Outer Dia. 5" (127mm) x length 13 5/16" (339mm) with 2 1/8" (52mm) end holes, Pleatco Ref: PRB 50-IN, Unicel Ref:C-4950.
PRB 75(ea) Outer Dia. 5" (127mm) x length 20 1/8" (521mm) with 2 1/8" (52mm) end holes, Pleatco Ref: PRB 75, Uniel Ref: C-4975.
PRB 100 Outer Dia. 5" (127mm) x length 26 1/2" (673mm) with 2 1/8" (52mm) end holes, Pleatco Ref: PRB 100, Unicel Ref:C-4999.
